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parsedmarc/parsedmarc/resources/maps/base_reverse_dns_map.csv
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Sean Whalen 45d3dc3b2e Fiz sortlists.py
2025-08-19 20:23:55 -04:00

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1base_reverse_dnsnametype
21000island.net1000 IslandISP
3101-clientes-izzi.mxIzzi TelecomISP
4118-clientes-izzi.mxIzzi TelecomISP
5163data.com.cnChina TelecomISP
6197-clientes-izzi.mxIzzi TelecomISP
71e100.netGoogleTechnology
8263.net263Email Provider
92day.kz2DAY Telecom LLPISP
10360group.es360 groupWeb Host
113bb.in.th3BBISP
123dprintingindustry.com3D Printing IndustryIndustrial
133kt.eu3K TechnologyMSP
144gbhost.com4GBHostWeb Host
1582-165-19-207.plesk.pageDigital Health PortalHealthcare
1693-clientes-zap-izzi.mxIzzi TelecomISP
1798-clientes-izzi.mxIzzi TelecomISP
18a2hosting.comA2HostingWeb Host
19aaltoscientific.comAalto ScientificHealthcare
20aams6.jpBroadBand Security, IncMSSP
21ab-group.bizAsiaBellISP
22abchk.netABCHKWeb Host
23abnormal-email.comAbnormal AIEmail Security
24academiasupport.orgAcademia Support JapanEducation
25accessmedlab.comAccess Medical LabsHealthcare
26acelerate.netAXS Bolivia S. A.ISP
27acessecomunicacao.com.brAcesseISP
28acessoline.net.brAlt TelecomISP
29activegate-ss.jpActive! gate SSEmail Security
30adairit.comAdair ITMSP
31additionnetworks.netCherryRoad TechnologiesMSP
32admintek.netAdmintekWeb Host
33admintekcr.netAdmintekWeb Host
34admiral.ne.jpASJISP
35adnhosting.caADN CommunicationsWeb Host
36adnsl.comADN TelecomISP
37adp.comADPFinance
38adrz.nlAdrzHealthcare
39adsl-pool.sx.cnChina UnicomISP
40adventconstructions.co.tzAdvent Construction LimitedIndustrial
41aeroinc.netThe Areo GroupIndustrial
42aesbg.netAESNETISP
43aeza.networkAezaWeb Host
44af-k.deI-NetPartner GmbHISP
45afghan-wireless.comAfghan WirelessISP
46afnet.netAFNETISP
47afriminesa.comAfrimine Southern AfricaIndustrial
48agencia-atlas.comGroupo AtlasLogistics
49agoda.comAgodaTravel
50aichi-colony.jpAichi Developmental Disability CenterHealthcare
51aigmedical.comAffiliates in GastroenterologyHealthcare
52aila.orgAmerican Immigration Lawyers AssociationNonprofit
53aircleaningspecialists.comAir Cleaning Specialists, Inc.Industrial
54aircomusa.comFaxPipe (Formerly AirCom USA)SaaS
55airgas.comAirgasIndustrial
56airtel.co.zmAirtelISP
57airtel.inAirtelISP
58airtelbroadband.inAirtelISP
59airtelkenya.comAirtelISP
60ajrmexico.netAJRLogistics
61ajusa.comAJ-USARetail
62aknet.kgAkNetISP
63akura.ne.jpAkuraLogistics
64albatros.uzAlbatros Health CareHealthcare
65alembic.co.inAlembic PharmaceuticalsHealthcare
66alestra.net.mxAlestraISP
67aliyun.comAlibaba CloudWeb Host
68alliancebroadband.inAlliance BroadbandISP
69almanet.netAlma CommunicationsISP
70alpha-mail.netOtsuka CorporationMSP
71alpha-prm.jpOtsuka CorporationMSP
72altel.kzAtalISP
73altmanadvisors.comAltman AdvisorsFinance
74altovalenet.com.brAlto Vale NetISP
75alwaysdata.comalwaysdataWeb Host
76amazon.comAmazonTechnology
77amazonaws.comAmazon Web Services (AWS)PaaS
78amazonses.comAmazon SESSaaS
79ambisys.netAmbisysHealthcare
80america.netAmerica.netWeb Host
81americanam.orgAmerican Advanced ManagementHealthcare
82amethyst.co.jpAmethystHealthcare
83ampernet.com.brAmpernetISP
84amplia.co.ttAMPLIAISP
85anet.net.thANETISP
86antelecom.netAntelecomISP
87anti-spam-premium.comLiquid WebWeb Host
88antilles-sante.comAAS MedicalHealthcare
89antispamcloud.comN-ableEmail Security
90antispameurope.comHornetsecurityEmail Security
91anylogic.comAnyLogicSaaS
92aplusgroup.netA Plus InternationalHealthcare
93apple.comAppleEmail Provider
94applicationx.netApplication XMSP
95appriver.comOpenText AppRiverEmail Security
96aps-inc.co.jpArahi PolysliderIndustrial
97aqmhost.netAqmHostWeb Host
98aragon.esGovernment of AragonGovernment
99archerirm.usArcher GRCSaaS
100arena.ne.jpWebARENAISP
101arizona.eduUniversity of ArizonaEducation
102arpinet.amArpinetISP
103artehosting.com.mxArtehostingWeb Host
104aruba.itAruba.itWeb Host
105as42831.netUK Dedicated ServersWeb Host
106asahikawa-med.ac.jpAsahikawa MedHealthcare
107ashtelstudios.comAshtel StudiosHealthcare
108asiaitserver.comAsia IT Solution Co.MSP
109asianet.co.thTtur Internet CorporationISP
110askbis.comBISWeb Host
111asl2.liguria.itASL2Healthcare
112asmecal.itASMENET CALABRIAGovernment
113assaytechnology.comAssay TechnologyIndustrial
114assentportal.comAssentSaaS
115assp.orgAmerican Society of Safety ProfessionalsHealthcare
116asteria.comAsteriaSaaS
117atmailcloud.comatmailEmail Provider
118ats.caATS HealthcareHealthcare
119atw.ne.jpATWWeb Host
120au-net.ne.jpKDDIISP
121au.comauISP
122auone-net.jpKDDIISP
123aussiebb.com.auAussie BroadbandISP
124autotask.netKaseyaSaaS
125averypartners.netAvery PartnersHealthcare
126avis.ne.jpDensan AvisISP
127aviso.ciOrangeISP
128avnam.netVPS ArgentinaWeb Host
129awasr.omAwasrISP
130awm.com.trYöncü Bilişim Çözümleri Limited ŞirketiWeb Host
131axspace.comAXspaseWeb Host
132axtel.netAxtelISP
133azeronline.comAzeronlineISP
134azteca-comunicaciones.comAztec Communications ColumbiaISP
135azure.comMicrosoft AzurePaaS
136backland.netBackland CommunicationsMSP
137balifiber.idBaliFiberISP
138banchero.orgBancharo Disability ServicesHealthcare
139barracuda.comBarracudaEmail Security
140barvanet.kzBarvanetMSP
141basketnews.ltBasketNewsSports
142bayada.comBAYADA Home Health CareHealthcare
143bayer.deBayerHealthcare
144bayoulandcs.comBayouland Computer SolutionsMSP
145bbemaildelivery.comBombBombMarketing
146bbnetup.com.brBBNET UPISP
147bbtel.comBBTELISP
148bcs.orgBCSNonprofit
149beaumont.orgCorewell Health (Formerly Beaumont)Healthcare
150bell.caBell CanadaISP
151bell.netBell CanadaISP
152benkan.co.jpBenkanIndustrial
153berea.eduBerea CollegeEducation
154betterhomeowners.comInTouch SystemsMarketing
155bezeqint.netBezeq InternationalISP
156bigcommerce.netBigCommerceSaaS
157biglobe.ne.jpBIGLOBEISP
158bigpond.comTelstraISP
159bigscoots.comBigScootsWeb Host
160biodose.comBioDoseHealthcare
161biotika.skBiotikaHealthcare
162bisno1.co.jpBis Co., Ltd.Construction
163bisv.ruBisv.ruISP
164blackfriarsam.comBlackfriars Asset ManagementFinance
165blacknight.comBlacknight SolutionsWeb Host
166blanksoft.devBlankSoftMSP
167blitzmediahosting.caBlitz MediaWeb Host
168bls.govU.S. Bureau of Labor StatisticsGovernment
169bluehost.comBluehostWeb Host
170bluemission.netBlue MissionWeb Host
171bluesea.orgBlue Sea FoundationMarketing
172bluetie.comBlueTieMSP
173bnpparibas.frBanque BNP ParibasFinance
174bohc.co.jpBenefit One Inc.Retail
175bookingtimes.comBookingTimesSaaS
176bostrad.comBostrad Supply Chain LtdLogistics
177bov.comBank of VallettaFinance
178bracnet.netBRACNet LimitedISP
179brasildigital.net.brBrasil Digital TelecomISP
180bravehost.comBravenetWeb Host
181bravenet.comBravenetWeb Host
182braveriver.comBrave RiverMSP
183breakthru.netBreakThruMSP
184bredband2.comBroadband2ISP
185breezein.netBRIZISP
186breezelineohio.netBreezelineISP
187bright.netCNIISP
188brightspace.comD2l BrightspaceSaaS
189brinkster.comBrinksterWeb Host
190brisanet.net.brBrisianetISP
191broadridge.comBroadridgeFinance
192btc-net.bgViacomISP
193btopenworld.comBTISP
194bugtusselwireless.comBug TusselISP
195bulsat.comBulsatcomISP
196bumblebeelinens.comBumbletree LinensRetail
197bunkaren.or.jpJapan Culture and Welfare Federation of Agricultural CooperativesAgriculture
198burnhamholdings.comBurnham HoldingsIndustrial
199buroserv.net.auBrunoservISP
200cable.net.coCablenetISP
201cablecom.chUPCISP
202cableonda.netCable OndaISP
203cabletel.com.mkA1ISP
204cablevision.net.mxIzzi TelecomISP
205cairohost.comBlack HostWeb Host
206caiway.nlCaiwayISP
207calero.comCaleroMSP
208calpoly.eduCal PolyEducation
209calvin.eduCalvin UniversityEducation
210canonet.ne.jpCanonetMSP
211carandainet.com.brCN InternetISP
212cardhealth.comCardinal HealthHealthcare
213cardinal.comCardinal HealthHealthcare
214cardinalhealth.comCardinal HealthHealthcare
215carecentrix.comCareCentrixHealthcare
216carrierzone.comcarrierzoneEmail Security
217carsforkids.orgCars For KidsNonprofit
218case.eduCase Western Reserve UniversityEducation
219castrum.com.brCastrum InternetISP
220catnet.jpHonjo CableISP
221cbe.aeCBEConstruction
222cbwchc.orgCharles B. Wang Community HealthHealthcare
223ccc-group.comCanada Colors and Chemicals Limited (CCC)Industrial
224cdbhospital.comCBD HospitalHealthcare
225celeste.frCELESTEISP
226centerasecurity.comCentera Email DefenceEmail Security
227centerasecurity.dkCentera Email DefenceEmail Security
228centralesupelec.frCentraleSupélecEducation
229centralinteractiva.com.mxCentral InteractivaMarketing
230centralnetx.com.brCentralnetISP
231centurylink.com.peCirionMSP
232certronic.com.arCertronicSaaS
233ch-saintcalais.frCentre Hospitalier du MansHealthcare
234chaiyohosting.comChaiy oHostingWeb Host
235changethatup.comChange That UpHealthcare
236charter.netCharterISP
237chiba-u.jpChiba UniversityEducation
238chikamori.comChikamori Health Care GroupHealthcare
239childrenscolorado.orgChildren's Hospital ColoradoHealthcare
240childrenshospital.orgBoston Children's HospitalHealthcare
241chinamobile.comChina MobileISP
242chinaunicom.cnChina UnicomISP
243chinaxingye.comSuzhou Sinye Materials TechnologyIndustrial
244ciliotech.comCilioSaaS
245cimcorp.comCimcorpIndustrial
246circleamedical.comCircle A MedicalHealthcare
247cirrushosting.comCirrus HostingWeb Host
248cisco.comCiscoTechnology
249cityemail.comCityEmailEmail Provider
250ckt.netCraw-Kan Telephone CooperativeISP
251clarix.comClarixMSP
252claro.com.doClaroISP
253claro.com.ecClaroISP
254claro.net.doMail2WorldEmail Provider
255claytonindustries.comClayton IndustriesIndustrial
256clearwave.comClearwave FiberISP
257clemson.eduClemson UniversityEducation
258clicktelecomunicacoes.com.brClick TelecomunicaçõesISP
259climaideal.comClima IdealRetail
260clinique-saint-george.comPolyclinique Saint GeorgeHealthcare
261cloud-sec-av.comCheck Point AvananEmail Security
262cloudezapp.ioEmailHeads.NETMarketing
263cloudfilter.netProofpoint CloudmarkEmail Security
264cloudflare-email.comCloudflareEmail Security
265cloudflare-email.netCloudflareEmail Security
266cloudflare.netCloudflareSaaS
267clouditalia.comRetelitWeb Host
268cloudwaysapps.comCloudwaysWeb Host
269cloudwebhosting.comNameHeroWeb Host
270clsvrsystems.netGMO CloudIaaS
271clubexpress.comClubExpressSaaS
272cniteam.comCNIISP
273cod.eduCollege of DuPageEducation
274codetel.net.docodetel.net.doISP
275coeficiente.net.mxCoeficienteISP
276coex.co.krCOEXMarketing
277cogeco.caCogecoISP
278cogeco.netCogocoISP
279cognizant.comCognizantTechnology
280collectivhosting.comCollectivWeb Host
281colocrossing.comColoCrossingISP
282colos.kzIFC COLOSLogistics
283combell.comCombellWeb Host
284comcast.netComcastISP
285comcastbusiness.netComcast BusinessISP
286comfori.comComforiSaaS
287comline.comWest Coast Internet (WCI)ISP
288communitect.comSolutionreachSaaS
289communitymedical.orgCommunity Medical CentersHealthcare
290complemar.comComplemarLogistics
291compliancearchitects.netCompliance AarchitectsHealthcare
292compu-type.netCompu-TypeMSP
293computerguyz.caComputer GuyzMSP
294computronics.comComputronicsTechnology
295comune.livorno.itCittà di LivornoGovernment
296comunitel.netVodafoneISP
297concurcompleat.comConcur CompleatSaaS
298concursolutions.comSAP ConcurSaaS
299condosites.netCondoSitesSaaS
300conoha.ne.jpConoHaWeb Host
301consolidatedlabel.comConsolidated LabelPrint
302constantcontact.comConstant ContactMarketing
303consumermedsafety.orgInstitute for Safe Medication PracticesHealthcare
304contaboserver.netContaboWeb Host
305convention.co.jpJapan Convention ServicesMarketing
306convergent-interfreight.comConvergent InterfreightLogistics
307convergentindia.comConvergent WirelessMSP
308coopenet.com.arCoopenetISP
309corbina.ruPJSC VimpelComISP
310corblock.comCorblockIndustrial
311corewellhealth.orgCorewell HealthHealthcare
312cornell.eduCornell UniversityEducation
313cotecal.com.arCotecalISP
314cotton-warehouse.comCotton Warehouse Classic CarsAutomotive
315coucou-networks.frFree MobileISP
316cox.netCox CommunicationsISP
317cp247.netM247Web Host
318cpanelhost.clcPanelHostWeb Host
319cpi.ad.jpCPIWeb Host
320cpi340b.comContract Pharmacy InsightHealthcare
321cpsinet.comTruBridgeHealthcare
322creehan.comInovalon (Formerly Creehan & Company)Healthcare
323crossinx.comUnifiedpost GroupSaaS
324crowncloud.netCrownCloudWeb Host
325crxmgmt.comThe Medicine Shoppe FranchiseeHealthcare
326csloxinfo.comCSLMSP
327csod.comCornerstoneSaaS
328ctbcbank.com.phCTBC Bank (Philippines) Corp.Finance
329ctbctelecom.com.brAlgar TelecomISP
330ctl.oneCenturyLinkISP
331cubiespot.net.idCubiespotISP
332cuenote.jpCuenoteSaaS
333cvent-planner.comCventSaaS
334cvtsv.comCventSaaS
335cwmc.com.brCWMCISP
336cwru.eduCase Western Reserve UniversityEducation
337cyberfuel.comCyberfuel.comWeb Host
338cyberlynk.netCyberLynkMSP
339cybermail.jpCyberMailEmail Provider
340cybernextech.co.thCYBER NEXTECHWeb Host
341cyfrowypolsat.plPolsat BoxISP
342cyon.netCyonWeb Host
343d2s.cloudd2s.cloudWeb Host
344daemonmail.nerDaemonMailEmail Provider
345dailyinvesthub.comDaily Invest HubFinance
346dailyrazor.comDailyRazorWeb Host
347damcogroup.comDamco SolutionsMSP
348damel.comDamel GroupFood
349daraju.comDarajuHealthcare
350darysoft.comDary Web DesignsWeb Host
351datanat.comDatanational CorporationMSP
352datawagon.netDataWagonWeb Host
353dattar.com.arDattarMSP
354dattaweb.comHostMarWeb Host
355daystar.ioDaystar Email ServiceEmail Provider
356ddccommunications.comDDC public affairsMarketing
357default-host.netINHOSTED LPWeb Host
358delhitel.netDelhi Telephone CompanyISP
359deliverychain.ioDelivery ChainSaaS
360deskwing.netDESKWINGEmail Provider
361dexanet.co.idDexanetISP
362dfn.nlDELTA FiberISP
363dgsys.esDGsysWeb Host
364dhl.comDHLlogistics
365diakovere.deDIAKOVEREHealthcare
366digijadoo.netJadoo DigitalISP
367digikabel.huOne Hungary (Formerly DIGI)ISP
368digitalairstrike.comDigital Air StrikeMarketing
369digiturunc.comDigituruncWeb Host
370dimenoc.comHostDime.comWeb Host
371directnic.netDirectnic.comWeb Host
372directwifi.com.brDirect InternetISP
373discovergreene.comGreene County, New YorkGovernment
374disenosweb.mxHive StudioWeb Host
375dishemail.comDISHISP
376dji.comDJITechnology
377dlivry.coTwilio SendGridMarketing
378dmmhosts.comDMM HostsWeb Host
379dnchosting.comDirectnicWeb Host
380dnns.netNo-IP Dynamic DNSWeb Host
381dnsthai.comAptum TechnologiesMSP
382doctors.org.ukDoctors.net.ukHealthcare
383domaincentral.com.auDomain CentralWeb Host
384domaineinternet.caRapidenet CanadaWeb Host
385domainit.comDomainItWeb Host
386donpac.ruRostelecomISP
387dosscloudservices.comDoss Business SystemsMSP
388doteasy.comDoteasyWeb Host
389dotinternetbd.comDOT InternetISP
390dotroll.comDotRollWeb Host
391downloaddatarecovery.comKernelAppsTechnology
392draminski.comDramiński TechnologyHealthcare
393dreamcompute.comDreamhostWeb Host
394dreamhost.comDreamhostWeb Host
395dreamhostps.comDreamhostWeb Host
396drive.ne.jpDrive NetworkWeb Host
397drjapan-jp.comDr. Japan Co., Ltd.Healthcare
398dslon.wsDslon WirelessISP
399dsmc.or.krKeimyung University Dongsan Medical CenterHealthcare
400dsw.comDSWRetail
401dtel.com.brDtel TelecomISP
402dts-security.deDTSMSP
403duck.comDuckDuckGoSearch Engine
404dvcotechnology.comCisionMarketing
405dwgreen.comDW Green CompanyMarketing
406dwit.co.krDaewon Information Technology Co.MSP
407dynadot.comDynadotWeb Host
408dynamic-mytachyon.inTachyon CommunicationsISP
409dyspatchit.netDyspatchitMarketing
410e-mmunity.netVIPREEmail Security
411e2ma.netEmmaMarketing
412eaglecom.netVyve BroadbandISP
413eastern-tele.comEastern CommunicationsISP
414easterndsl.com.phEastern CommunicationsISP
415eastlink.caEastlinkISP
416easy-hebergement.netEasy-HébergementWeb Host
417easydns.comeasyDNSWeb Host
418easymail.caeasyMailEmail Provider
419easyseo.com.mySEO Services MalaysiaMarketing
420easyweb.comeasyDNSWeb Host
421eboundhost.comeBoundhostWeb Host
422echolabs.netEcho LabsMSP
423echoworx.netEchoworxEmail Security
424ecm8.comCampaign Master (UK)Marketing
425ecritel.netEcritelMSP
426edgepark.comEdgeparkHealthcare
427edu.comInstructionalAssistantSaaS
428eduneering.comUL EHS trainingSaaS
429egov.comTyler TechnologiesSaaS
430egress.cloudEgress SoftwareEmail Security
431egs-seg.gc.caCanada Government Electronic Directory Services (GEDS)Government
432ehafconsulting.orgEHAF Consulting EngineersConstruction
433ehime-u.ac.jpEhime UniversityEducation
434ehostsolution.netE Host SolutionWeb Host
435eigbox.netNewfold DigitalWeb Host
436einsteinmail.comEinstein IndustriesWeb Host
437eircom.netEirISP
438ejpress.comeJournalPressSaaS
439elcat.kgElCatISP
440elcom.ruRostelcomISP
441electric.netVIPREEmail Security
442elevatedstudios.techElevated StudiosWeb Host
443eleven.mxEleven Marketing LabsMarketing
444elive.netEliveWeb Host
445ellipse.netEllipseMSP
446elmecnet.netElmec InformaticaMSP
447elnk.netEarthlinkISP
448email-od.comSocketLabsSaaS
449emailarray.comEmailarrayEmail Provider
450emailowl.comNameSiloWeb Host
451emailsecurity.appMesh SecurityEmail Security
452emailservice.ioMailprotectorEmail Security
453emailsrv.netMailprotectorEmail Security
454emailsrvr.comRackspace EmailEmail Security
455emberpoint.comEmber PointSaaS
456empaquesmundiales.comEmpaques MundialesIndustrial
457emporiaresearch.comEmporiaSaaS
458emsecure.netSelligentMarketing
459emsend2.comActiveCampaignMarketing
460encrypttitan.netEncryptTitanEmail Security
461enguard.comEnGuardEmail Security
462eninetworks.comENI NetworksISP
463entelchile.netEntelISP
464entelvias.com.brEntelviasISP
465enternetprovedor.com.brEnternetISP
466entrata.comEntrataSaaS
467entrustedmail.netEntrustedMailEmail Security
468eonemedia.comeOneMediaPhotography
469epicpc.comEpic HealthHealthcare
470epicura.beEpiCURAHealthcare
471epsl1.comPublicis GroupeMarketing
472erie.govErie County, New YorkGovernment
473erlabrunn.deKliniken ErlabrunnHealthcare
474ertelecom.ruER-TelecomISP
475eskerondemand.comEskerSaaS
476etc.uzEast TelecomISP
477etex.netEtexISP
478etik-cloud.comInfomaniakIaaS
479etipres.comETIPRESPrint
480etius.jpWebArenaWeb Host
481etouches.comStovaSaaS
482eventsairmail.comEventsAirSaaS
483evernet.net.coEvernetISP
484evertecinc.comEvertecFinance
485evertecpr.comEvertecFinance
486exacthosting.comExact HostingWeb Host
487exactt.comSalesforce Marketing Cloud (Formerly ExactTarget)Marketing
488exacttarget.comSalesforce Marketing Cloud (Formerly ExactTarget)Marketing
489execulink.netExeculink TelecomISP
490expedia.netExpediaTravel
491explori.comExploriEvent Planning
492expositltd.comExposit Ltd.MSP
493express.com.arExpress TelecomunicacionesISP
494ezorg.nlE-ZorgHealthcare
495fap.mil.peLa Fuerza Aérea del Perú (FAP)Government
496fast.net.idLinknet-FastnetISP
497fastnet.kgFastNetISP
498fastspeed.dkFastspeedISP
499feasa.ieFeasaIndustrial
500fedex.comFedExLogistics
501ferreterialindavista.comSomos Ferreteria LindavistaRetail
502fetnet.netFETNetISP
503fgl.com.mxFrancisco Garcia LopezHealthcare
504fiberhub.comFiberHubISP
505fibertel.com.arPersonalISP
506fibextelecom.netFibex TelecomISP
507fibralink.net.brFibralinkISP
508fibrenoire.cafibrenorieISP
509fireeyecloud.comFireEyeEmail Security
510fireeyegov.comFireEye (Government)Email Security
511firstcloudsecurity.netCyberCisionEmail Security
512fisherpaykel.comFisher & PaykelRetail
513fisquare.comInfinceSaaS
514flashmaistelecom.com.brFlash + TelecomISP
515fleetviolations.comATS Processing ServicesLogistics
516flinnsci.comFlinn ScientificHealthcare
517floridaurologypartners.comFlorida Urology PartnersHealthcare
518flywheelsites.comFlywheelWeb Host
519fmc-na.comFresenius Medical CareHealthcare
520fmcna.comFresenius Medical CareHealthcare
521fmu.ac.jpFukushima Medical UniversityEducation
522fonacit.gob.veFonacitGovernment
523foodtecsolutions.comFoodTec SolutionsSaaS
524formassembly.comFormAssemblySaaS
525forpsi.comForpsiWeb Host
526forthnet.grNovaISP
527fortimail.comFortinet FortiMailEmail Security
528fortimailcloud.comFortinet FortiMail CloudEmail Security
529forwardemail.netForwardEmail.netEmail Provider
530fourseasonspediatrics.comFour Seasons PediatricsHealthcare
531francedns.comEurofiber FranceISP
532franchisemail.netFranConnectSaaS
533franweb.net.brFRAN WEBISP
534freehostia.comFreehostiaWeb Host
535freehosting.comFreeHosting.comWeb Host
536freemail.huFreemail bejelentkezésEmail Provider
537frontiir.comFRONTiiRMSP
538fuertehoteles.comFuerte Group HotelsTravel
539fujibake.co.jpFuji BakeliteIndustrial
540fujita-hu.ac.jpFujita Health UniversityHealthcare
541funeralone.netfuneralOneSaaS
542fuse.netAltafiber (Formerly Cincinnati Bell)ISP
543fusionconnect.comFusion ConnectMSP
544future-bridge.euFuture Bridge EventsMarketing
545gaggle.netGaggleSaaS
546gallerycollection.comThe Gallery CollectionRetail
547gandi.netGandi.netWeb Host
548gastrogainesville.comGastroenterology Associates of GainesvilleHealthcare
549gatormail.co.ukSpotlerMarketing
550gazella.esOrix SystemsMSP
551gci.netGCIISP
552gcicom.netNasstarMSP
553gcrcompany.comGCR CompanyMSP
554gearhost.comGearHostWeb Host
555gen2fund.comGen IIFinance
556generalinformatix.netGeneral InformatixTechnology
557genoray.comGENORAYHealthcare
558genstarnetcable.comGennstar Network SolutionsISP
559gerberlife.comGerber Life InsuranceFinance
560ggsv.jpTechorusWeb Host
561ghm-grenoble.frGroupe hospitalier mutualiste de Grenoblehealthcare
562glasgow-ky.comGlasgow EPBISP
563glesys.netGleSYSWeb Host
564glink.inf.brGlinkWeb Host
565gln.net.brGlobal LinesISP
566globalit.comGlobal ITMSP
567gmoserver.jpGMOWeb Host
568gmu.eduGeorge Mason UniversityEducation
569gmx.comGMXISP
570gmx.netGMXISP
571godaddy.comGoDaddyWeb Host
572goldmedimport.com.brGoldmed importHealthcare
573gom.co.zaGraytown Office MachinesMSP
574google.comGoogle (Including Gmail and Google Workspace)Email Provider
575googleusercontent.comGoogle Cloud Platform (GCP)PaaS
576gosecure.netGoSecureEmail Security
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1147ovh.caOVHWeb Host
1148ovh.netOVHWeb Host
1149ovh.usOVHWeb Host
1150ownit.seOwnitISP
1151owt.comOne World TelecommunicationsISP
1152ox.ac.ukEducation of OxfordEducation
1153oxsus-vadesecure.netScalewayWeb Host
1154pair.comPair NetworksWeb Host
1155pairdomains.netPair DomainsWeb Host
1156pairvps.comPair NetworksWeb Host
1157paket78.ruПакет ПакетовIndustrial
1158palette-up.jpPalette UPWeb Host
1159panelvps.netPanelBoxWeb Host
1160panola.comComplete ComputersMSP
1161paragould.netParagould Municipal UtilitiesISP
1162parkerinstitute.orgParker Jewish Institute for Healthcare & RehabilitationHealthcare
1163parsleysage.net.ParsleySage Guest HouseTravel
1164paubox.comPauboxEmail Security
1165pbiaas.comINOSWeb Host
1166pd25.comSalesforce Marketing Cloud (Formerly Pardot)Marketing
1167peaknet.netPeakNetIndustrial
1168pearcebevill.comPearce, Bevill, Leesburg, Moore, P.C.Finance
1169peopleanswers.comInforSaaS
1170pepitrans01.comNetcore (Formerly Pepipost)SaaS
1171pepitrans02.comNetcore (Formerly Pepipost)SaaS
1172perception-point.ioPerception PointEmail Security
1173perenso.comPerensoMarketing
1174perfora.netIONOSWeb Host
1175perimeterwatch.comPerimeterWatchMSSP
1176petroed.comPetroEdEducation
1177pfmsys.comProfessional Flight Management (PFM)Logistics
1178pgcps.orgPrince George's County Public SchoolsEducation
1179piedmonteye.comPiedmont Eye CenterHealthcare
1180pif.co.ukPinnacle FreightLogistics
1181pipefy.comPipefy IncSaaS
1182plala.or.jpPlalaISP
1183planety.com.brPlanety InternetISP
1184platform.shPlatform.shPaaS
1185play-internet.plPlayISP
1186playbackmail.comPlayBackMailEmail Provider
1187pldi.netPioneer CellularISP
1188pldt.netPLDTISP
1189plis.net.brPlis TelecomISP
1190plus.netplusnetISP
1191plus.plPlusISP
1192pmweb.com.brpmwebMarketing
1193pobox.comPoboxEmail Provider
1194pol-online.comBangladesh OnlineISP
1195pol.irParsOnlineISP
1196poneytelecom.euPony TelecomWeb Host
1197porkbun.comporkbun.comISP
1198portative.netPortative TechnologiesISP
1199postcodesoftware.co.ukPostcode SoftwareSaaS
1200ppe-hosted.comProofpoint EssentialsEmail Security
1201pphosted.comProofpointEmail Security
1202prchost.comPRC HostingWeb Host
1203prempub.comPremier PublishingMarketing
1204princeton.eduPrinceton UniversityEducation
1205principal-it.comPrincipal ITMSP
1206privateemail.comPrivateEmail.comEmail Provider
1207privatelabeldns.comTurnKey InternetWeb Host
1208privatelayer.comPrivate LayerWeb Host
1209privatesystems.netPrivateSystems.netWeb Host
1210prnewswire.comPR NewswireMarketing
1211procopa.dkProcopa ITMSP
1212profitserver.ruProfitserverWeb Host
1213prontomarketing.comPronto MarketingMarketing
1214proofhubmail.comProofHubSaaS
1215prosites.comProSitesWeb Host
1216proton.chProtonEmail Provider
1217proton.meProtonEmail Provider
1218protonmail.chProtonEmail Provider
1219provedornetcenter.com.brNetcenterISP
1220proventainternational.comProventa InternationalHealthcare
1221prudential.com.sgPrudential SingaporeFinance
1222prudentpublishing.comPrudent PublishingRetail
1223prw.netPuerto Rico WebmastersWeb Host
1224pserver.spaceProfitserverWeb Host
1225psychz.netPsychz NetworksWeb Host
1226ptd.netPTDISP
1227ptrcloud.netGMO GlobalSignIaaS
1228pubnix.netPubNIXWeb Host
1229puc-rio.brPUC RioEducation
1230pucminas.brPUC MinasEducation
1231pucp.edu.pePontificia Universidad Católica del PerúEducation
1232pulkco.comPulk & CoISP
1233pulsetv.comPulse TVRetail
1234purdue.eduPurdue UniversityEducation
1235pwuhui.com.twPerfect MedicalHealthcare
1236qemailserver.comQualtricsSaaS
1237qindiafund.comQ India FundFinance
1238qlix.com.brQlixWeb Host
1239qq.comQQEmail Provider
1240qrc.caQuality Respiratory CareHealthcare
1241qth.comQTH.comWeb Host
1242quadax.comQuadaxHealthcare
1243quadranet.comQuadranetWeb Host
1244questforum.orgTelecommunications Industry AssociationIndustrial
1245quitmancountyms.orgQuitman County, MississippiGovernment
1246quotevalet.comQuoteValetSaaS
1247qvidian.comQvidianSaaS
1248qwest.netQuest CommunicationsISP
1249r3zo.netR3ZOWeb Host
1250rack400.comRack400Web Host
1251racknation.crRsckNationWeb Host
1252rackspace.comRackspaceWeb Host
1253radarinternet.com.brRadar InternetISP
1254radiantsolutions.netRadient SolutionsWeb Host
1255rafftechnologies.comRaff TechnologiesWeb Host
1256raiolanetworks.comRaiola NetworksWeb Host
1257raleighortho.comRaleigh OrthopaedicHealthcare
1258ramsaysante.frRamsay SantéHealthcare
1259raycdjr.comRay Chrysler Dodge Jeep RAMAutomotive
1260rcil.gov.inRailTelISP
1261rcn.comRCNISP
1262rdp.shRDP.shSaaS
1263redbird.netNexGenAccess (Formerly Redbird)ISP
1264redcotel.boCotel Ltda.ISP
1265redesiminternet.com.brSim FibraISP
1266redetuxnet.com.brTuxnetISP
1267redexpertos.comRedExpertosWeb Host
1268rediffmailpro.comRediffmail ProEmail Provider
1269redirection.netRedirectionetWeb Host
1270reef-guardian.comReef GuardianEducation
1271reg.ruReg.ruWeb Host
1272reg365.netregister365Web Host
1273regentbranding.co.ukRegent BrandingMarketing
1274regiomed-kliniken.deREGIOMED-KLINIKEN GmbHHealthcare
1275register.itRegister.itWeb Host
1276registeredsite.comWeb.comWeb Host
1277registrar-servers.comNamecheapWeb Host
1278regusnet.comRegusReal estate
1279regxa.comRegxa CloudWeb Host
1280relativity.oneRelativityOneSaaS
1281relod.ruRELODRetail
1282rheamedical.orgRhea Medical CenterISP
1283rhein-it.deRHEN ITMSP
1284riberasaludmail.comRibera SaludHealthcare
1285rightnowtech.comOracle Service CloudSaaS
1286rima-tde.netTELEFONICA, S.A.ISP
1287riskonnectclearsight.comRiskonnect ClearSightSaaS
1288rit.eduRochester Institute of TechnologyEducation
1289ritternet.comRitter CommunicationsISP
1290rmx.deRetarus GmbHSaaS
1291roche.comRocheHealthcare
1292rogers.comRogersISP
1293rootlayer.netRootLayer LTD.Web Host
1294rotundasoftware.comRotunda SoftwareMSP
1295rsa.comRSATechnology
1296rsgsv.netIntuit MailchimpMarketing
1297rt.ruRTGovernment Media
1298runbox.comRunboxEmail Provider
1299rusonyx.ruRysonyx CloudWeb Host
1300rutgers.eduRutgers UniversityEducation
1301rwas.co.ukRoyal Welsh Agricultural SocietyAgriculture
1302rzone.deStrato AGWeb Host
1303sabyrconsulting.comSabyr ConsultingMSP
1304safari-productions.comSafari ProductionsEvent Planning
1305safaricombusiness.co.keSafaricomISP
1306safewebservices.comNMISaaS
1307saimanet.kgSaima TelecomISP
1308sakura.ne.jpSAKURA InternetISP
1309salesforce.comSalesforceSaaS
1310samanage.comSolarWinds Service DeskSaaS
1311samil-pharm.comSamilHealthcare
1312samtel.ruSamtelecomISP
1313sandrix.comSandrix TechnologiesMSP
1314santehealth.netSante Health SystemHealthcare
1315saplbd.comSummit Alliance PortLogistics
1316sapmed.ac.jpSapporo Medical UniversityHealthcare
1317sarkor.uzSarkorISP
1318sbcglobal.netAT&TISP
1319scaledsystems.comSimpleNetWeb Host
1320scatair.comScatairManufacturing
1321schmc.ac.krSoon Chun Hyang University Medical CenterHealthcare
1322scorm.comSCORMSaaS
1323sdldelivery.comSpecialty Delivery & LogisticsLogistics
1324sealbond.co.jpNippon SealbondManufacturing
1325seaspraymta1.comCox CommunicationsISP
1326seaspraymta2.comCox CommunicationsISP
1327secomtrust.netSECOM Trust SystemsMSP
1328sectormail.netSectorlinkWeb Host
1329secure-mailgate.comSecure MailgateEmail Provider
1330secure-mails.comTata CommunicationsSaaS
1331secure.jpKIDDI Web Communications (CPI)Web Host
1332secure.ne.jpKIDDIISP
1333securednshost.comIPS Inc.Web Host
1334securemailserver.casecuremailserver.caEmail Provider
1335securemx.jpIIJ SecureMXEmail Security
1336securence.comSecurenceEmail Security
1337secureserver.netGoDaddyWeb Host
1338seed.net.twSeednetISP
1339selligent.comSelligentMarketing
1340sendcloud.ioSebdcloudSaaS
1341sendcloud.orgAurora SendCloudSaaS
1342sendgrid.netTwilio SendGridMarketing
1343sendio.comSendioEmail Security
1344sendnode.comMAILINGWORKMarketing
1345sendoso.comSendosoMarketing
1346sensaphone.comSensaphoneSaaS
1347sentara.comSentaraHealthcare
1348seqtek.netSEQTEKMSP
1349servconfig.comInMotion HostingWeb Host
1350serverdata.netGoDaddyWeb Host
1351serverhost.netServer HostWeb Host
1352serverhs.orgWebHSWeb Host
1353serverneubox.com.mxNeuboxWeb Host
1354serveroffer.netServerofferWebhost
1355serverpanel.comShock HostingWeb Host
1356service-now.comServiceNowSaaS
1357servicehoster.chGreenWeb Host
1358servicemail24.deArvato SystemsMSP
1359servicesennuage.caCDT ConnexionMSP
1360servidorcostarica.comHostDimeWeb Host
1361servidoresdns.netArsysWeb Host
1362ses-stiftung.deSchwester Euthymia StiftungHealthcare
1363sevtelecom.ruServastopol TelecomISP
1364sfr.frSFRISP
1365shamrog.comShamrogWeb Host
1366shared-server.netGMO CloudWeb Host
1367shatel.irShatelISP
1368sheffieldpharma.comSheffield PharmaceuticalsHealthcare
1369shield.securityMailprotectorEmail Security
1370shizuokaseiki.comShizuoka SeikiIndustrial
1371shmc.jpSainokuni Higashiomiya Medical CenterHealthcare
1372shoplocalpharmacy.comCardinal HealthHealthcare
1373showakvc.co.jpShowa Kasei Kogyo Co., Ltd.Industrial
1374showpad.comShowpadMarketing
1375sibyl.comSibl DesignMSP
1376signal.noSignalISP
1377signium.co.jpSigniumConsulting
1378siho.orgSiho Insurance ServicesFinance
1379simplystamps.comSimply StampsRetail
1380simpro.com.brSimproHealthcare
1381simus.uzSimusISP
1382sinergit.com.doSinergitMSP
1383siriustelecom.uzSirius TelecomISP
1384siteprotect.comSiteMailEmail Provider
1385sitios.winSitios WinWeb Host
1386sixinternet.com.brSix InternetISP
1387sjtransindo.comSumatera Jaya TransindoLogistics
1388sknt.ruSkynetISP
1389skybroadband.comSkyISP
1390sl-reverse.comIBM CloudPaaS
1391slgnt.euSelligentMarketing
1392slgnt.usSelligentMarketing
1393slic.comSLIC Network SolutionsISP
1394smartape.ruSmart Ape LLCWeb Host
1395smartone.comSmarToneISP
1396smartservers.com.auHostopia AustraliaWeb Host
1397smartspb.netSmart TelecomISP
1398smtp.comSMTP.comSaaS
1399smtp.czActive24Web Host
1400smtp25.comZixEmail Security
1401smtp2go.comSMTP2GOSaaS
1402snapengage.comSnapEngageSaaS
1403socgen.comSociete GeneraleFinance
1404socialfive.comSocial5Marketing
1405socialservices-ssmd.caSocial Services Sault Ste. MarieGovernment
1406socket.netSocketISP
1407socoolsolution.comSo Cool SolutionMSP
1408sodetel.net.lbsodetelISP
1409sofreafurnishings.comSofrea FurnishingsRetail
1410softbank.jpSoftBankISP
1411softbank.ne.jpSoftBankISP
1412softvideo.ruСОФТВИДЕОISP
1413sonichealthcareusa.comSonic Healthcare USAHealthcare
1414sophos.comSophosEmail Security
1415sosnc.govNorth Carolina Secretary of StateGovernment
1416sougo-group.jpCamcom GroupSaaS
1417spaceship.netSpaceshipWeb Host
1418spaceweb.ruSpaceWebWeb Host
1419spamtitan.comSpamTitanEmail Security
1420sparklight.comSparklightISP
1421sparkpostmail.comSparkPostMarketing
1422spectrum.comSpectrumISP
1423speedway.hkSpeedway TravelsTravel
1424speedy.com.arMovistar (Formerly Speedy)ISP
1425speedy.net.peTelefonica del PeruISP
1426speicherzentrum.deSpeicherzentrumWeb Host
1427spglobal.comS&P GlobalFinance
1428spintheweb.comSpin The WebWeb Host
1429splashtop.comSplashtopTechnology
1430springernature.comSpringer NatureEducation
1431srvape.comSmart Ape LLCWeb Host
1432ssdcloudindia.netE2E NetworksWeb Host
1433ssnettelecom.net.brSSNET TelecomISP
1434sst2u.comSST2UEducation
1435ssuv.uzSamarkand Institute of Veterinary Medicine, Animal Husbandry and BiotechnologyEducation
1436stackmail.com20iWeb Host
1437stanford.eduStanford UniversityEducation
1438starchapter.comStarChapterSaaS
1439stargatecommunications.comX-Link LimitedISP
1440starhealthagency.comStar Home HealthHealthcare
1441starkmans.comStarkmans Health Care DepotHealthcare
1442starlinx.comStrLinXMSP
1443state.co.usThe State of ColoradoGovernment
1444state.ma.usThe State of MassachusettsGovernment
1445state.ms.usThe State of MissouriGovernment
1446state.or.usThe State of OregonGovernment
1447stcable.netST CableISP
1448stellarllc.netGardonville Cooperative Telephone AssociationISP
1449stertec.co.jpKUNIMORI-STAR GroupMSP
1450stetnet.com.brwebby agora é alaresISP
1451stewarthowe.comNewfold DigitalWeb Host
1452sti.netSierra TelISP
1453stjansdal.nlHospital St JansdalHealthcare
1454stokes.nc.usStokes County, North CarolinaGovernment
1455stomabags.comStomabags.comHealthcare
1456stonybrook.eduStonybrook UniversityEducation
1457strategictreasurer.comStrategic TreasurerFinance
1458stratoserver.netSTRATOWeb Host
1459succeed.netSucceed.netISP
1460superb.netCherryRoad (Formerly Superb Internet)Web Host
1461supercp.coma2 hostingWeb Host
1462supernetes.tv.brSupernetISP
1463superonline.netTurkcell SuperonlineISP
1464supportedns.comMDD HostingWeb Host
1465sura.ruRostelecomISP
1466sureserver.comSureSupport LLCWeb Host
1467swiftslots.comSwiftSlotsWeb Host
1468swishmail.comSwishmailMSP
1469swisscenter.comSwissCenterWeb Host
1470swisscom.chSwisscomISP
1471syn-alias.comSynacorSaaS
1472synccentric.comSynccentricSaaS
1473synchronoss.netSynchronossSaaS
1474synthite.co.ukSynthiteIndustrial
1475sysaidit.comSysAidSaaS
1476sysnet.ieVikingCloudMSP
1477t-ipconnect.deDeutsche TelekomISP
1478tachc.orgTexas Association of Community Health Centers (TACHC)Healthcare
1479takeda.comTakedaHealthcare
1480takethemameal.comTake Them A MealSaaS
1481tami.plTAMIMSP
1482tanglewoodhealth.comTanglewood Medical SuppliesHealthcare
1483tanomail.comTanomailRetail
1484tanzaniaservers.comTanzania ServersWeb Host
1485tctwest.netTCTISP
1486tds.netTDSISP
1487teche.netUnitiMSP
1488teksavvy.comTekSavvyISP
1489telebecinternet.comTelebecISP
1490telecentro-reversos.com.arTelecentroISP
1491telecom.kzKazakhtelecomISP
1492telecom.net.arTelecom ArgentinaISP
1493telecomitalia.itTIMISP
1494telecomprovider.com.brTelecom ProviderISP
1495telefonica.deTelefónica GermanyISP
1496telekom.rsMTSISP
1497telenet-ops.beTelenet BVISP
1498telenet.beTelenetISP
1499telepac.ptSAPOEmail Provider
1500telepacific.netTPx CommunicationsISP
1501teleson.net.brTeleson TelecomISP
1502telkomsa.netTelkomISP
1503tellas.grNova TelecommunicationsISP
1504telmex.net.arTelmex ArgentinaISP
1505telstra.netTelstraISP
1506telus.netTELUSISP
1507tenders.netTenders.netSaaS
1508teol.netmtelISP
1509tera-byte.comTera-ByteWeb Host
1510terra.comTerra NetworksWeb Host
1511terra.com.brTerra MailEmail Provider
1512tevapharm.comTeva PharmaceuticalsHealthcare
1513texas.govThe Government of TexasGovernment
1514tfn.net.twTaiwan Fixed NetworkISP
1515thcservers.comTHCServersWeb Host
1516thechristhospital.comThe Christ HospitalHealthcare
1517thegameshowcompany.caThe Game Show CompanyEntertainment
1518thehostgroup.comThe Host GroupWeb Host
1519thomsonreuters.comThomson ReutersSaaS
1520tical.comGrupo TicalLogistics
1521ticketor.comTicketorEntertainment
1522tidewater.netTidewater TelecomISP
1523tie.clTelefónica Internet Empresas S.A.ISP
1524tigerconnect.comTigerConnectSaaS
1525tigertech.netTiger TechnologiesWeb Host
1526tigo.com.coTigo ColumbiaISP
1527tim.itTIMISP
1528timeetc.comTime EtcSaaS
1529timeweb.ruTimewebWeb Host
1530tisco.mxTISCO NetworksMSP
1531titan.emailTitanEmail Provider
1532titanhq.comTitanHQEmail Security
1533tix.itTuscany Internet eXchangeISP
1534tkreal.ruThe Real GroupLogistics
1535tktelekom.plTK TelecomHealthcare
1536tm.netMercury TelecomISP
1537tmc.eduTruett McConnell UniversityEducation
1538tmcz.czT-MobileISP
1539tmd.ac.jpScience TokyoEducation
1540tmdcloud.comTMDHostingWeb Host
1541tmddedicated.comTMDHostingWeb Host
1542tmkultra.net.brTmk NetISP
1543tmodns.netT-Mobile USAISP
1544tnc-neuro.comTallahassee Neurological ClinicHealthcare
1545tofinosoftware.comTofinoSaaS
1546tohoku-mpu.ac.jpTohoku Medical and Pharmaceutical UniversityEducation
1547tohoku.ac.jpTohoku UniversityEducation
1548tohoyk.co.jpToho PharmaceuticalHealthcare
1549top-tokyo.co.jpTOP CORPORATIONHealthcare
1550topauctions24-7.comTopAuctions24-7Retail
1551tophost.chNovaTrend ServicesWeb Host
1552topo.aiCrisis24SaaS
1553tosis.co.jpTosoh Information SystemsMSP
1554tosoh.co.jpTosohIndustrial
1555tpgi.com.auTPGISP
1556tpnet.plOrangeISP
1557tps.uzTPS TelecomISP
1558tradeindia.comTradeIndiaSaaS
1559transtelco.netFlō NetworksISP
1560transtelecom.netTrans TelecomISP
1561trendmicro.comTrend MicroEmail Security
1562trendmicro.euTrend MicroEmail Security
1563trentu.caTrent UniversityEducation
1564triadefibra.com.brTríade FibraISP
1565triolan.netTriolanISP
1566trivenet.itTrivenet TelecomunicazioniISP
1567truemail.co.thTrue InternetISP
1568truman.eduTrueman State UniversityEducation
1569trustifi.comTrustifiEmail Security
1570tsimages.netTSImagesSaaS
1571tsukuba.ac.jpUniversity of TsukubaEducation
1572ttiinc.comTTIIndustrial
1573ttk.ruJoint Stock Company TransTeleComISP
1574ttn.gob.arTribunal de Tasaciones de la NaciónGovernment
1575ttnet.com.trTürk TelekomISP
1576tufts.eduTufts UniversityEducation
1577tulsaconnect.comTULSACONNECTMSP
1578tunasgroup.comTunas GroupAutomotive
1579tvactelecom.com.brTVAC TelecomISP
1580tvpublica.com.arTVPISP
1581twu.eduTexas Woman's UniversityEducation
1582u-fukui.ac.jpUniversity of FukuiEducation
1583u-tokai.ac.jpToki UniversityEducation
1584u-tokyo.ac.jpUniversity of TokyoEducation
1585uab.eduThe University of Alabama at BirminghamEducation
1586ualberta.caUniversity of AlbertaEducation
1587ubc.caThe University of British ColumbiaEducation
1588ucdavis.eduUC DavisEducation
1589uchealth.comUC HealthHealthcare
1590ucla.eduUCLAEducation
1591uclouvain.beUCLouvainHealthcare
1592ucom.amUcom LLCISP
1593ucom.ne.jpTsunagu Network Communications Inc.ISP
1594ufanet.ruUfanetISP
1595ufl.eduUniversity of FloridaEducation
1596uhc.comUnited HealthcareHealthcare
1597uhu.esUniversity of HuelvaEducation
1598uic.eduUniversity of Illinois ChicagoEducation
1599uky.eduUniversity of KentuckyEducation
1600ultimatedomain.hostingUltimate Domain HostingWeb Host
1601ultravision.com.mxUltracelISP
1602ultraweb.caBackland CommunicationsMSP
1603ultrawebhosting.comUltra Web HostingWeb Host
1604umbc.eduUniversity of Maryland, Baltimore CountyEducation
1605umich.eduUniversity of MichiganEducation
1606umin.ac.jpUniversity Hospital Medical Information Network (UHIN) of JapanHealthcare
1607umn.eduUniversity of MinnesotaEducation
1608unifiedlayer.comUnifiedLayersWeb Host
1609unin.hrSveučilište SjeverEducation
1610uninet-ide.com.mxTelmexISP
1611unity-health.orgUnity HealthHealthcare
1612univac.com.sgUnivacIndustrial
1613universal-shoji.co.jpUniversal ShojiIndustrial
1614untd.comUnited OnlineISP
1615uoeh-u.ac.jpUniversity of Occupational and Environmental Health, JapanEducation
1616uol.com.brUOL - UNIVERSO ONLINE S/AWeb Host
1617uplinkcrm.itUplink Web Agency SrlSaaS
1618ural-net.ruinetvdomISP
1619uscomputers.comU.S. Computer CorporationMSP
1620usp.brUniversity of São PauloEducation
1621ussignalcom.netUS SignalMSP
1622usssa.comUSSSASports
1623utah.eduUniversity of UtahEducation
1624utelesup.edu.peUniversidad privada TelesupEducation
1625uvm.eduUniversity of VermontEducation
1626uw.eduUniversity of WashingtonEducation
1627uzpak.uzuzpak.uzIndustrial
1628v2soft.comV2SoftMSP
1629va.govU.S. Department of Veterans AffairsGovernment
1630vadesecure.comVade SecureEmail Security
1631valenet.com.brValenetISP
1632vanwerthospital.orgVan Wert HealthHealthcare
1633vdonsk.ruMicroelISP
1634vectranet.plVectraISP
1635vedco.comVedcoHealthcare
1636veetime.comVeeTIMEISP
1637vegans.itvegan/sMSP
1638vege.netvege.netWeb Host
1639ventech.comC1MSP
1640verat.netBeotelNetISP
1641verginia.eduUniversity of VirginiaEducation
1642verizon.netVerizonISP
1643verizonbusiness.comVerizon BusinessISP
1644verointernet.com.brInternet de VerdadeISP
1645versanet.de1&1 VersatelISP
1646vgohosting.comHostPapaWeb Host
1647vicc.coVenco Imtiaz Contracting CoIndustrial
1648victorkaiser.comGlobal TransportLogistics
1649videotron.caVideotronISP
1650videotron.comVideotronISP
1651viecuri.nlVieCuriHealthcare
1652viettel.vnViettelISP
1653virginia.eduThe University of VirginiaEducation
1654virginia.govThe State of VirginiaGovernment
1655virginm.netVirgin MediaISP
1656virginmediabusiness.co.ukVergin Media BusinessISP
1657virtrugateway.comVirtuEmail Security
1658virtua.com.brVirtua BrizilMarketing
1659virtualhosting.hkUDomainWeb Host
1660visabeira.co.aoCOMATELISP
1661visi.comUS SignalMSP
1662visitmiddlesex.caMiddlesex County, CanadaGovernment
1663vismap.itIndustrie VismapRetail
1664vivozap.com.brVivo MobileISP
1665vnpt.vnVNPTISP
1666vnr.deVNR GroupSaaS
1667vodacom.co.zaVodacomISP
1668vodafonedsl.itVodafone ItilyISP
1669vodien.comVodienWeb Host
1670voicehost.co.ukVoiceHostPaaS
1671voith.comVoithIndustrial
1672volstate.netIT VoiceMSP
1673vom.comValley of the MoonISP
1674vote4mentalhealth.orgNAMIHealthcare
1675votervoice.netVoterVoiceSaaS
1676vpath.co.zaPathcare VermaakHealthcare
1677vsu.byVitebsk State UniversityEducation
1678vtext.comVerizon SMSISP
1679vtgus.comVirtual Technologies GroupMSP
1680vtr.netVTRISP
1681vulcnmold.comVulcanMoldIndustrial
1682vultrusercontent.comVultrWeb Host
1683vwhs.orgWally-Wide HealthHealthcare
1684vyvebroadband.netVyveISP
1685wadax-sv.jpWADAXWeb Host
1686wadax.ne.jpWADAXWeb Host
1687waldmann.comWaldmannIndustrial
1688wanadoo.frOrangeISP
1689washington.eduUniversity of WashingtonEducation
1690wasip.comWASIP Ltd.Healthcare
1691wavenetuk.netWavenetMSP
1692waypointcentre.caWaypoint CentreHealthcare
1693wbhcp.comWilliams Bros PharmacyHealthcare
1694web-dns1.comWeb Hosting CanadaWeb Host
1695web-hosting.comNamecheapWeb Host
1696web.africaWebafricaISP
1697webbytelecom.com.brWebby InternetISP
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1708webresolver.comHolistic TechnologiesMSP
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1747xinet.com.mxXinetMSP
1748xipline.comRitter CommunicationsISP
1749xmission.comXMissionSaaS
1750xmr3.comOpenTextSaaS
1751xnet.mxXnetMSP
1752xrea.comXREAWeb Host
1753xserver.jpXserverWeb Host
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1755yadtel.netZirrusISP
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1757yahoo.comYahooEmail Provider
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1762yelpcorp.comYelpSocial Media
1763yesfibra.com.brYES FibraISP
1764yettel.huYettelISP
1765ykwc.comYellowknife WirelessISP
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1767your-site.comYour-Site.ComWeb Host
1768yourconnect.comYourconnectWeb Host
1769yourhostingaccount.comNewfold DigitalWeb Host
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1772yuuai.or.jpSocial Medical Corporation YuuaikaiHealthcare
1773z.comZ.comWeb Host
1774zaansmc.nlZaans Medical CenterHealthcare
1775zare.comZareWeb Host
1776zbltelecom.net.brZBL TelecomISP
1777zcmail.netZoho CampaignsMarketing
1778zcsend.netZoho CampaignsMarketing
1779zdsys.comZendeskSaaS
1780zedality.comZedalityWeb Host
1781zirrus.comXirrus.comISP
1782zixcorp.comZixEmail Security
1783zixsmbhosted.comZixEmail Security
1784zixworks.comZixEmail Security
1785zoho.comZohoSaaS
1786zoho.euZohoSaaS
1787zoho.inZohoSaaS
1788zohocorporation.comZohoSaaS
1789zohomail.comZohoSaaS
1790zoneedit.comZoneeditWeb Host
1791zsttk.ruTTKISP
1792zyner.netZynerEmail Provider
1793zyner.oneZynerEmail Provider
1794zyner.orgZynerEmail Provider
1795zzn.comZZNEmail Provider
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