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
AS559 Switch, CH Switzerland 2184960 176093790208
AS1764 NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT Austria 84736 240518430720
AS2497 IIJ - Internet Initiative Japan Inc., JP Japan 3911680 17716871168
AS3130 RGNET-SEA - RGnet OU, EE Estonia 1024 65536
AS3257 GTT-BACKBONE - GTT Communications Inc., US United States 8555520 468152549376
AS3303 SWISSCOM - Swisscom (Schweiz) AG, CH Switzerland 3521024 204347408384
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 28950144 81626857472
AS3491 CONSOLE-CONNECT-ASN - PCCW Global, Inc., US United States 1157888 13421838336
AS4230 CLARO S.A., BR Brazil 5155584 21475164160
AS4538 ERX-CERNET-BKB - China Education and Research Network Center, CN China 17176832 17931626610688
AS5511 Opentransit - Orange S.A., FR France 412416 17184260096
AS6057 Administracion Nacional de Telecomunicaciones, UY Uruguay 2156032 68719607808
AS6461 ZAYO-6461 - Zayo Bandwidth, US United States 1744384 52076871680
AS6762 SEABONE-NET - TELECOM ITALIA SPARKLE S.p.A., IT Italy 284672 8590065664
AS6830 LibertyGlobal - Liberty Global Europe Holding B.V., NL Netherlands 1119232 103079215104
AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC, US United States 92883968 2426673954816
AS7594 ONQ-AS-AP - On Q Networks, AU Australia 11264 4294967296
AS7922 COMCAST-7922 - Comcast Cable Communications, LLC, US United States 68039424 36318243520512
AS12310 iNES - iNES GROUP SRL, RO Romania 55808 4294967296
AS12956 TELXIUS - TELEFONICA GLOBAL SOLUTIONS SL, ES Spain 102656 12884901888
AS14259 Gtd Internet S.A., CL Chile 396288 8589934592
AS15547 NETPLUS - netplus.ch SA, CH Switzerland 135168 42949672960
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
AS31510 IKB-AS - Innsbrucker Kommunalbetriebe AG, AT Austria 27904 4294967296
AS32590 VALVE-CORPORATION - Valve Corporation, US United States 13056 2162688
AS32709 1-JOINK - Joink, LLC, US United States 45056 4294967296
AS41327 FIBERTELECOM-AS - Fiber Telecom S.p.A., IT Italy 7168 68719476736
AS52468 UFINET PANAMA S.A., PA Panama 208896 73944137728
AS56987 AS-ABACLOUDA - ABACLOUDA SAS, FR France 1280 34359738368
AS59890 Kabel-TV-Lampert - Kabel-TV Lampert GmbH & Co KG, AT Austria 13312 34359738368
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
AS199524 GCORE - G-Core Labs S.A., LU Luxembourg 127648 113836032
AS262427 Invista Net Provedor de Acesso Ltda, BR Brazil 8192 4294967296
AS267613 ELETRONET S.A., BR Brazil 1024 4294967296
AS272403 RAFAEL RIGOBERTO LOPEZ OROZCO, MX Mexico 3072 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

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

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

Graph