Longest Match / Organisations

Organisations

Who address space is registered to, ranked by how much they hold. The 5,000 largest of 89,919 are listed; the search box covers all of them. IPv4 is counted in addresses and IPv6 in /64 networks, and the two are never added, because no unit makes them comparable. Holders come from the bulk whois RIPE, APNIC and AFRINIC publish, so North and South American holders are largely missing.

Organisations

89,919

Holding a /22 or any IPv6

46,365

IPv4 space named

52%

Registries covered

3 of 5

Organisation	IPv4 addresses	IPv6 /64s	Blocks	Registry
Contabo GmbH	609,280	34,359,738,369	439	RIPE
National Telecom Public Company Limited	606,464	8,589,934,593	26	APNIC
Telia Eesti AS	603,904	51,539,673,094	52	RIPE
SIA Tet	603,392	38,654,705,666	31	RIPE
UBS AG	602,112	34,359,738,369	19	RIPE
MTN Nigeria	602,112	4,294,967,297	7	AFRINIC
PCCW IMS Ltd (PCCW Business Internet Access)	597,504	38,654,705,666	41	APNIC
Completel SAS	594,944	34,359,738,369	16	RIPE
Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	594,688	34,359,738,369	18	RIPE
PlusServer GmbH	592,776	115,964,116,998	184	RIPE
Novotelecom Ltd	589,824	4,294,967,297	4	RIPE
Oracle Corporation	586,496	4,294,967,297	18	APNIC
Liberty Global Europe Holding B.V.	585,216	38,654,902,277	20	RIPE
MTN SUDAN	582,656	4,294,967,297	6	AFRINIC
Dingfeng Xinhui (Hongkong) Technology Limited	577,536	38,654,771,203	66	RIPE
Bahnhof AB	573,696	68,719,476,738	32	RIPE
Tata Teleservices Limited -GSM Division	567,808	4,294,967,297	17	APNIC
Euskaltel S.A.	566,272	34,359,738,369	14	RIPE
Moldtelecom SA	562,688	34,359,803,906	104	RIPE
Mauritius Telecom Ltd	561,152	-	3	AFRINIC
Zen Internet Ltd	556,032	34,359,738,369	14	RIPE
VECTRA S.A.	555,264	34,359,738,369	174	RIPE
JSC Selectel	555,008	34,359,738,369	278	RIPE
PrJSC "VF UKRAINE"	552,960	21,474,836,482	14	RIPE
ENGIE SA	551,424	-	17	RIPE
Cyprus Telecommunications Authority	549,696	34,359,738,369	61	RIPE
Host Europe GmbH	545,792	107,374,313,489	193	RIPE
Vetenskapsradet / SUNET	542,464	4,294,967,297	58	RIPE
NetCologne Gesellschaft fur Telekommunikation mbH	541,696	103,079,215,106	16	RIPE
Atria Convergence Technologies Pvt. Ltd.,	538,624	8,589,934,594	13	APNIC
Verizon Australia Pty Limited	536,832	4,295,032,834	36	APNIC
Zambia Telecommunications Company Ltd aka ZAMTEL	532,480	4,294,967,297	3	AFRINIC
DIAMOND IP BROKERS FZCO	532,480	-	20	RIPE
Hutchison 3G UK Limited	529,408	34,359,738,369	6	RIPE
Sky Italia srl	527,360	554,050,781,186	8	RIPE
ALFA TELECOM s.r.o.	526,848	-	12	RIPE
UNITEL SA	525,313	4,294,967,297	4	AFRINIC
TOPNET	525,312	4,294,967,297	7	AFRINIC
Sikt - Kunnskapssektorens Tjenesteleverandor	524,288	4,294,967,297	10	RIPE
Aviation RE LLC	523,264	2	35	RIPE
Amazon Data Services European Sovereign Cloud GmbH	512,000	34,359,738,369	8	RIPE
Oman Telecommunications Company (S.A.O.G)	512,000	4,294,967,297	16	RIPE
Maxis Broadband Sdn Bhd	508,928	12,884,967,428	25	APNIC
Vodafone Ireland Limited	506,880	8,589,934,594	65	RIPE
euNetworks GmbH	506,368	171,798,691,845	28	RIPE
SIA "BITE Latvija"	503,040	146,028,888,070	118	RIPE
ecotel communication ag	495,104	38,654,705,666	16	RIPE
green.ch AG	487,936	68,719,476,738	31	RIPE
Rackspace Ltd.	486,400	21,474,836,484	36	RIPE
PTK-Centertel	483,840	-	22	RIPE
CONVERGE INFORMATION AND COMMUNICATIONS TECHNOLOGY SOLUTIONS, INC	481,024	4,294,967,297	35	APNIC
Polkomtel Sp. z o.o.	480,768	73,014,444,034	190	RIPE
Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.	480,768	38,654,902,277	87	RIPE
DigitalOcean, LLC	480,768	38,654,705,666	20	RIPE
Yettel d.o.o.	478,208	68,719,476,738	20	RIPE
Bayerische Motoren Werke Aktiengesellschaft	478,208	34,359,738,369	40	RIPE
IONOS SE	477,452	68,719,476,738	330	RIPE
Hong Kong Cable Television Limited	476,160	4,294,967,297	21	APNIC
Autonomous Nonprofit Organisation "Russian Scientific-Research Institute for Public Networks"	474,880	34,360,000,514	100	RIPE
Consiglio Nazionale delle Ricerche	474,624	8,590,065,668	23	RIPE
KCOM Group Limited	474,112	73,014,444,035	137	RIPE
PJSC Moscow city telephone network	471,296	47,244,640,260	51	RIPE
Telecom Malagasy	471,040	4,294,967,297	101	AFRINIC
XTRA TELECOM S.A.	470,016	68,719,476,738	87	RIPE
AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL	469,504	115,964,116,998	168	RIPE
Entidad Publica Empresarial Red.es	467,200	34,360,000,517	21	RIPE
Gamma Telecom Limited	466,944	34,359,738,369	10	RIPE
Smartone Mobile communications Limited	464,896	4,294,967,297	8	APNIC
SHELLNET SOCIETA' IN ACCOMANDITA PER AZIONI DI SHELLNET GP S.R.L.	464,128	-	8	RIPE
Airtel Tanzania	463,872	4,294,967,297	6	AFRINIC
HKBN Enterprise Solutions HK Limited	462,848	8,589,934,593	123	APNIC
Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V.	460,800	34,359,738,369	13	RIPE
Ministerie van Verkeer en Waterstaat/Rijkswaterstaat	459,776	8,589,934,594	11	RIPE
M1 LIMITED	446,464	8,589,934,593	16	APNIC
Kintetsu Cable Network,Ltd	442,368	4,294,967,297	10	APNIC
Virgin Media Ireland Limited	434,176	38,654,705,666	15	RIPE
"Rightel Communication Service Company PJS"	433,664	34,359,738,369	93	RIPE
GCI Network Solutions Limited	432,896	81,604,378,629	109	RIPE
Syrian Telecommunication Private Closed Joint Stock Company	432,128	12,884,901,890	46	RIPE
ABB Information Systems Ltd	430,080	-	6	RIPE
Consortium GARR	427,264	4,294,967,297	72	RIPE
Scaleway	425,984	4,294,967,297	29	RIPE
VOO S.A.	422,912	268,435,457	122	RIPE
Australian Defence Organisation	421,120	17,592,186,044,417	20	APNIC
Salesforce, Inc.	419,840	34,359,738,369	17	RIPE
Universitaet Stuttgart	419,840	34,359,738,369	39	RIPE
Tele Columbus AG	418,816	73,014,444,035	34	RIPE
Limited Liability Company "lifecell"	418,816	34,359,738,369	11	RIPE
ANDROMEDA TV DIGITAL PLATFORM ISLETMECILIGI A.S.	410,880	4,294,967,297	8	RIPE
CONTENT DELIVERY NETWORK LTD	410,624	38,654,705,666	12	RIPE
E-Light-Telecom Ltd.	410,624	34,359,738,369	69	RIPE
TT&T Co., Ltd.	403,456	4,294,967,297	9	APNIC
ARNES	402,688	34,359,803,906	16	RIPE
UAB code200	401,152	34,359,869,443	188	RIPE
Palestine Telecommunications Company (PALTEL)	398,080	68,719,476,738	81	RIPE
A1 Hrvatska d.o.o.	396,800	47,244,640,260	31	RIPE
Signify Holding B.V.	395,264	34,359,738,369	7	RIPE
M-net Telekommunikations GmbH	394,240	34,359,738,369	15	RIPE
Deutsche Post AG	394,240	-	5	RIPE
Government of South Africa	393,216	-	1	AFRINIC
cleardocks LLC	387,072	-	206	RIPE
Cyber Assets FZCO	383,232	1,138,166,333,474	172	RIPE
Zscaler Switzerland GmbH	383,232	4,294,967,297	9	RIPE
Aruba S.p.A.	381,952	47,244,640,260	71	RIPE
Telecom Plus Ltd	380,928	4,294,967,297	7	AFRINIC
Yettel Hungary Ltd.	376,832	8,589,934,593	7	RIPE
ARABIAN INTERNET & COMMUNICATIONS SERVICES CO.LTD	369,664	34,359,738,369	14	RIPE
DiGi Telecommunications Sdn Bhd	369,664	4,294,967,297	7	APNIC
FIBIA P/S	368,640	38,654,705,666	18	RIPE
T2 Mobile LLC	361,984	47,244,640,260	49	RIPE
Kar-Tel LLC	361,472	42,949,672,963	78	RIPE
EOLO S.p.A.	361,472	34,359,738,369	15	RIPE
European Commission	361,472	4,294,967,297	15	RIPE
Lanet Network Ltd	361,216	8,589,934,594	41	RIPE
Equinix (Netherlands) Enterprises BV	360,448	-	46	RIPE
steel-axis LLC	359,680	-	138	RIPE
Telemach Slovenija d.o.o.	358,656	111,669,149,701	43	RIPE
GOLD IP L.L.C-FZ	355,072	4,294,967,297	7	RIPE
CERN - European Organization for Nuclear Research	354,816	8,590,065,667	54	RIPE
AVATEL TELECOM, SA	354,048	382,252,089,356	351	RIPE
truview LLC	352,768	-	250	RIPE
wilhelm.tel GmbH	349,184	38,654,705,666	50	RIPE
SUPERLOOP (AUSTRALIA) PTY LTD	348,928	90,194,313,222	83	APNIC
Middle East Internet Company Limited	348,160	34,359,738,369	15	RIPE
DIGI SPAIN TELECOM S.A	347,392	34,359,738,369	635	RIPE
PODA a.s.	347,136	47,244,640,260	29	RIPE
Earthlink Telecommunications Equipment Trading & Services DMCC	345,088	34,359,738,369	6	RIPE
JSC RTComm.RU	343,808	42,949,672,963	41	RIPE
Ljosleidarinn ehf	342,528	4,294,967,297	20	RIPE
DKTV A/S	340,992	73,014,444,035	13	RIPE
ENTANET International Limited	337,920	68,719,476,738	11	RIPE
PJSC "TATTELECOM"	336,896	4,294,967,297	15	RIPE
NAUKOWA I AKADEMICKA SIEC KOMPUTEROWA - PANSTWOWY INSTYTUT BADAWCZY	336,384	38,654,902,277	52	RIPE
Makedonski Telekom AD-Skopje	335,872	34,359,738,369	11	RIPE
Kenya Education Network	335,872	4,294,967,297	4	AFRINIC
SONATEL Societe Nationale Des Telecommunications Du Senegal	335,872	4,294,967,297	7	AFRINIC
Saab AB	335,228	-	30	RIPE
SWAN, a.s.	333,824	51,539,607,557	47	RIPE
Cisco OpenDNS LLC	330,752	38,654,705,666	762	RIPE
XFERA Moviles S.A.	330,240	150,323,855,367	76	RIPE
BULL SAS	329,472	-	3	RIPE
PJSC "Bashinformsvyaz"	329,216	4,294,967,297	16	RIPE
A1 Slovenija telekomunikacijske storitve,d.d.	328,960	103,079,215,107	21	RIPE
AT&T Japan K.K.	328,960	8,590,983,171	32	APNIC
Verizon France SAS	328,704	34,359,738,369	7	RIPE
Airtel Malawi Ltd	328,704	4,294,967,297	7	AFRINIC
CSC - Tieteen tietotekniikan keskus Oy	328,704	4,294,967,297	6	RIPE
Intersvyaz-2 JSC	327,936	4,294,967,297	27	RIPE
KIFU (Governmental Info Tech Development Agency)	327,680	4,294,967,297	5	RIPE
Larus Media Group Limited	327,680	-	4	RIPE
Aria Shatel PJSC	325,888	274,877,906,945	9	RIPE
GlobalConnect AB	322,312	180,388,691,976	77	RIPE
INTAC Services GmbH	321,536	68,719,476,738	68	RIPE
Iomart Managed Services Limited	321,280	128,849,018,889	86	RIPE
Aussie Fibre Pty Ltd	319,488	150,323,855,364	31	APNIC
Fundacao para a Ciencia e a Tecnologia, I.P.	317,696	34,359,803,906	39	RIPE
Signet B.V.	316,672	163,208,757,258	1,611	RIPE
Eastern Telecommunications Philippines, Inc.	315,648	4,294,967,297	17	APNIC
AFRIHOST SP (PTY) LTD	314,368	73,014,444,034	84	AFRINIC
Omani Qatari Telecommunication Company SAOC	312,384	34,359,803,906	13	RIPE
SkyNet Ltd.	309,248	34,359,738,369	17	RIPE
Invitech ICT Services Kft.	308,992	34,359,738,369	79	RIPE
Magticom Ltd.	308,480	34,359,738,369	28	RIPE
Melita Limited	305,152	77,309,411,332	41	RIPE
VTX Services SA	304,128	8,589,934,594	18	RIPE
CS Loxinfo Public Company Limited	303,104	8,589,934,593	294	APNIC
Kenyan Post & Telecommunications Company / Telkom Kenya Ltd	303,104	4,294,967,297	7	AFRINIC
NEXTGEN COMMUNICATIONS SRL	299,264	4,294,967,297	7	RIPE
Delos Cloud GmbH	295,936	34,359,738,369	6	RIPE
Ethio Telecom	295,936	4,294,967,297	5	AFRINIC
Sky Internet	295,936	4,294,967,297	9	APNIC
Wateen Telecom Limited	293,632	4,294,967,297	16	APNIC
SCIENTIFIC RESEARCH INSTITUTE FOR SYSTEM ANALYSIS OF THE NATIONAL RESEARCH CENTRE "KURCHATOV INSTITUTE"	293,376	42,949,672,963	20	RIPE
PRIVATE JOINT-STOCK COMPANY "FARLEP-INVEST"	289,024	4,294,967,297	32	RIPE
LeaseWeb Netherlands B.V.	287,744	4,294,967,297	22	RIPE
Orange Côte d'Ivoire	287,744	4,294,967,297	20	AFRINIC
RAIN GROUP HOLDINGS (PTY) LTD	286,720	1,108,101,562,371	111	AFRINIC
Libyan Telecom and Technology	286,720	4,294,967,297	4	AFRINIC
Mobile Telecommunication Company Saudi Arabia Joint-Stock company	286,464	34,359,738,369	25	RIPE
Volvo Information Technology AB	283,784	34,359,738,369	431	RIPE
M247 Europe SRL	282,632	240,518,234,120	475	RIPE
GHOSTnet GmbH	280,832	210,453,463,048	3,586	RIPE
Wireless Ltd	279,552	34,359,738,369	27	RIPE
Togo Telecom	278,528	4,294,967,297	4	AFRINIC
EMTEL LIMITED	277,504	4,294,967,297	6	AFRINIC
SpaceX Services, Inc.	276,992	38,654,705,666	27	RIPE
CITIC Telecom International CPC Limited	273,408	4,294,967,297	16	APNIC
Hostinger International Limited	271,872	4,294,967,297	293	RIPE
Stora Enso Oyj	271,376	131,074	43	RIPE
NextGenTel AS	270,640	34,359,738,369	20	RIPE
Exponential-E Ltd.	270,336	4,294,967,297	9	RIPE
Icosnet SPA	270,336	4,294,967,297	3	AFRINIC
Orange Cameroun SA	270,336	4,294,967,297	3	AFRINIC
Region Stockholm	268,800	4,294,967,297	23	RIPE
Hot-Net internet services Ltd.	267,520	34,359,738,369	12	RIPE
Stellantis Auto SAS	267,520	34,359,738,369	8	RIPE
Sri Lanka Telecom Ltd	267,520	4,295,098,371	19	APNIC
NATIONAL MOBILE TELECOMMUNICATIONS COMPANY K.S.C.P.	267,264	34,359,738,369	6	RIPE
Total Access Communication PLC.	267,264	34,359,738,369	8	APNIC
Angola Telecom	267,264	4,294,967,297	5	AFRINIC
Rakuten Mobile, Inc.	265,216	1,108,101,562,370	22	APNIC
GVM Sistem 2003 SRL	265,216	38,654,705,666	127	RIPE
Quantcom, a.s.	265,216	12,884,901,891	31	RIPE
Imperial College of Science, Technology and Medicine	264,704	34,359,738,369	10	RIPE
Migros-Genossenschafts-Bund	264,704	34,359,738,369	11	RIPE
Network and Information Technology Limited	264,704	-	4	AFRINIC
South African Post Office	264,704	-	3	AFRINIC
China Education and Research Network (CERNET)	264,448	35,214,436,990,985	19	APNIC
Nimbus IP Networks BV	264,192	103,079,215,107	97	RIPE
Unitary enterprise A1	264,192	103,079,215,107	241	RIPE
ServiceNow, Inc.	264,192	34,359,738,369	9	RIPE
JSC "Ufanet"	263,424	8,590,000,131	26	RIPE
University College London	263,168	34,359,803,906	7	RIPE
LLC Orange Business Services	263,168	34,359,738,369	9	RIPE
Mobile TeleSystems JLLC	263,168	4,294,967,297	7	RIPE
National Academic Network and Information Center	263,168	4,294,967,297	7	RIPE
Tertiary Education and Research Network of South Africa	262,656	4,294,967,297	8	AFRINIC
Tose'h Fanavari Ertebabat Pasargad Arian Co. PJS	262,400	68,719,476,738	69	RIPE
GRDF SA	262,400	34,359,738,369	12	RIPE
Credit Agricole SA	262,400	65,537	6	RIPE
NXP Semiconductors Netherlands B.V.	262,144	34,359,738,369	5	RIPE
"Central Telegraph" Public Joint-stock Company	262,144	4,294,967,297	7	RIPE
Department of Home Affairs	262,144	4,294,967,297	5	APNIC
Genpact India Private Limited	262,144	4,294,967,297	5	APNIC
Microsoft Deutschland MCIO GmbH	262,144	4,294,967,297	4	RIPE
Royal Mail Group Limited	262,144	-	4	RIPE
HostRoyale Technologies Pvt Ltd	261,376	1,773,821,493,301	407	RIPE
Yandex.Cloud LLC	260,608	34,359,738,369	57	RIPE
KSC Commercial Internet Co.Ltd.	259,328	4,294,967,297	11	APNIC
M1 NET LTD	259,072	73,014,444,034	17	APNIC
Netnova Limited	258,816	4,294,967,297	12	APNIC
Next Limited	258,304	4,604,204,941,446	380	RIPE
Telemach Hrvatska d.o.o.	258,048	42,949,672,963	20	RIPE
Gabon Telecom / Office of Posts and Telecommunications of Gabon	258,048	4,294,967,297	7	AFRINIC
Companhia de Telecomunicacoes de Macau	257,024	4,294,967,297	14	APNIC
Limited Liability Company "TTK-Svyaz"	252,672	4,294,967,297	29	RIPE
Telefonica UK Limited	251,904	12,884,901,891	10	RIPE
Net By Net Holding LLC	250,752	-	43	RIPE
Vox Telecom Ltd	248,832	34,359,738,369	15	AFRINIC
Monash University	248,576	4,294,967,297	12	APNIC
HKBN Enterprise Solutions Limited	247,808	4,294,967,297	12	APNIC
SAP SE	247,312	38,654,902,281	42	RIPE
RCS Technologies FZE LLC	246,784	34,359,738,369	139	RIPE
YANDEX LLC	246,272	34,359,738,369	5,353	RIPE
Exatel S.A.	246,016	34,359,738,369	8	RIPE
TK Telekom sp. z o.o.	245,760	4,294,967,297	6	RIPE
Fiber Ltd	244,480	34,359,738,369	36	RIPE
Legaco Networks B.V.	241,920	3,165,390,897,245	578	RIPE
Bundesministerium des Innern und fuer Heimat	241,920	2,216,203,124,738	14	RIPE
SALZBURG AG fur Energie, Verkehr und Telekommunikation	241,920	34,359,738,369	28	RIPE