Summary

NetName
COGENT-A
OrgName
Cogent Communications, LLC
CIDR
RIR

ARIN

Country

Status

Direct Allocation

Abuse

abuse@cogentco.com

Contact

ipalloc@cogentco.com

RegDate

1991-04-16

Updated

2025-09-23

Routing

AS Desc Country IPv4 NUMs IPv6 NUMs
AS513 CERN - CERN - European Organization for Nuclear Research, CH Switzerland 354816 8589934592
AS1916 Rede Nacional de Ensino e Pesquisa, BR Brazil 726912 268566784
AS2516 KDDI - KDDI CORPORATION, JP Japan 18043648 2761664036864
AS3130 RGNET-SEA - RGnet OU, EE Estonia 1024 65536
AS3741 NTT-DATA-Inc - Dimension Data, ZA South Africa 2966528 146029019136
AS4230 CLARO S.A., BR Brazil 5155584 21475164160
AS4538 ERX-CERNET-BKB - China Education and Research Network Center, CN China 17176832 17931626610688
AS5392 TELNET-ITALY - TELNET S.r.l., IT Italy 16384 4294967296
AS6057 Administracion Nacional de Telecomunicaciones, UY Uruguay 2156032 68719607808
AS6128 CABLE-NET-1 - Cablevision Systems Corp., US United States 4992256 73014444032
AS6453 AS6453 - TATA COMMUNICATIONS (AMERICA) INC, US United States 507392 55834705920
AS6762 SEABONE-NET - TELECOM ITALIA SPARKLE S.p.A., IT Italy 284672 8590065664
AS7594 ONQ-AS-AP - On Q Networks, AU Australia 11264 4294967296
AS12310 iNES - iNES GROUP SRL, RO Romania 55808 4294967296
AS12637 SEEWEB - SEEWEB s.r.l., IT Italy 82432 197568495616
AS14259 Gtd Internet S.A., CL Chile 396288 8589934592
AS14537 CL-1379-14537 - Continent 8 LLC, US United States 66048 12884901888
AS14630 INVESCO - Invesco Group Services, Inc., US United States 7936 38671482880
AS15547 NETPLUS - netplus.ch SA, CH Switzerland 135168 42949672960
AS20055 AS-WHOLESAIL - Wholesail networks LLC, US United States 916224 1108101693440
AS20932 SIG-ST - Services Industriels de Geneve, CH Switzerland 9472 4294967296
AS22652 FIBRENOIRE-INTERNET - Videotron Ltee, CA Canada 186880 8592162816
AS22850 PIT-US - PIT US, US United States 0 0
AS23352 SERVERCENTRAL - DEFT.COM, US United States 189440 4563533824
AS23520 LIBERTY-NETWORKS - Columbus Networks USA, Inc., US United States 285440 8589934592
AS28398 INTERNET TELEFONIA Y TV DE MICHOACAN SA DE CV, MX Mexico 5120 8589934592
AS29680 VOZTELECOM - Gamma Operadora de Comunicaciones S.A., ES Spain 12544 4294967296
AS30600 AS-CMN - Metronet, US United States 367872 1108101562368
AS31034 ARUBA-ASN - Aruba S.p.A., IT Italy 288768 27279753216
AS32590 VALVE-CORPORATION - Valve Corporation, US United States 13056 2162688
AS32709 1-JOINK - Joink, LLC, US United States 45056 4294967296
AS34177 CELESTE-AS - CELESTE SAS, FR France 289792 98784247808
AS37100 SEACOM-AS - SEACOM Limited, MU Mauritius 1072896 12884901888
AS38008 APERTURE-AS-AP - Aperture Science Limited, HK Hong Kong 2560 4578082816
AS49788 NEXTHOP - Nexthop AS, NO Norway 47104 107374313472
AS52320 GlobeNet Cabos Submarinos Colombia, S.A.S., CO Colombia 4096 8589934592
AS52468 UFINET PANAMA S.A., PA Panama 208896 73944137728
AS56308 TELIN-NET-SG - TELEKOMUNIKASI INDONESIA INTERNATIONAL, PTE.LTD, SG Singapore 15872 4295032832
AS56987 AS-ABACLOUDA - ABACLOUDA SAS, FR France 1280 34359738368
AS57111 ALTITUD - NOVA NETWORKS S.R.L., IT Italy 3072 34359738368
AS60068 CDN77 - Datacamp Limited, GB United Kingdom 120832 1191444480
AS61568 ALOO TELECOM - FSF TECNOLOGIA SA, BR Brazil 12544 4295032832
AS61573 IP TELECOM, BR Brazil 1024 4294967296
AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD, AU Australia 108544 77422067712
AS148968 FALCORE-AS-AP - Falcore Investments Pty Ltd, AU Australia 3072 4295163904
AS151326 DCPL-AS-AP - DCConnect Communication Pte. Ltd., SG Singapore 2560 4295032832
AS215596 Kissgroup - KISSGROUP SAS, FR France 4352 34359738368
AS262427 Invista Net Provedor de Acesso Ltda, BR Brazil 8192 4294967296
AS263237 PowerHost Telecom SPA, CL Chile 3328 196608
AS267613 ELETRONET S.A., BR Brazil 1024 4294967296
AS272403 RAFAEL RIGOBERTO LOPEZ OROZCO, MX Mexico 3072 4294967296
AS327960 PC-MANIACS - PC Maniacs (Pty) Ltd, ZA South Africa 2048 4294967296
AS395348 DATASPINDLE, US United States 512 134217728

Whois

NetRange:       38.0.0.0 - 38.255.255.255
CIDR:           38.0.0.0/8
NetName:        COGENT-A
NetHandle:      NET-38-0-0-0-1
Parent:          ()
NetType:        Direct Allocation
OriginAS:
Organization:   Cogent Communications, LLC (COGC)
RegDate:        1991-04-16
Updated:        2025-09-23
Ref:            https://rdap.arin.net/registry/ip/38.0.0.0

OrgName:        Cogent Communications, LLC
OrgId:          COGC
Address:        2450 N Street NW
City:           Washington
StateProv:      DC
PostalCode:     20037
Country:        US
RegDate:        2000-05-30
Updated:        2025-09-23
Comment:        Geofeed https://geofeed.cogentco.com/geofeed.csv
Ref:            https://rdap.arin.net/registry/entity/COGC

ReferralServer:  rwhois://rwhois.cogentco.com:4321

OrgAbuseHandle: COGEN-ARIN
OrgAbuseName:   Cogent Abuse
OrgAbusePhone:  +1-877-875-4311
OrgAbuseEmail:  abuse@cogentco.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/COGEN-ARIN

OrgNOCHandle: ZC108-ARIN
OrgNOCName:   Cogent Communications
OrgNOCPhone:  +1-877-875-4311
OrgNOCEmail:  noc@cogentco.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ZC108-ARIN

OrgTechHandle: IPALL-ARIN
OrgTechName:   IP Allocation
OrgTechPhone:  +1-877-875-4311
OrgTechEmail:  ipalloc@cogentco.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPALL-ARIN

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