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
AS852 ASN852 - TELUS Communications Inc., CA Canada 4737280 12907118592
AS1403 EBOX, CA Canada 290816 73014444032
AS1916 Rede Nacional de Ensino e Pesquisa, BR Brazil 726912 268566784
AS2497 IIJ - Internet Initiative Japan Inc., JP Japan 3842560 17716871168
AS2518 BIGLOBE - BIGLOBE Inc., JP Japan 3670016 38654705664
AS3130 RGNET-SEA - RGnet OU, EE Estonia 1024 65536
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 28948608 81626857472
AS3491 CONSOLE-CONNECT-ASN - PCCW Global, Inc., US United States 1084928 13421838336
AS4230 CLARO S.A., BR Brazil 5155584 21475098624
AS4538 ERX-CERNET-BKB - China Education and Research Network Center, CN China 17176832 17927331446784
AS5511 Opentransit - Orange S.A., FR France 543488 17184194560
AS6461 ZAYO-6461 - Zayo Bandwidth, US United States 1678080 17717133312
AS6830 LibertyGlobal - Liberty Global B.V., NL Netherlands 1124864 103079215104
AS6893 SAITIS-NETWORK - Saitis Network, N.Desir, CH Switzerland 9472 34359738368
AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC, US United States 92815872 2418067308544
AS8708 DIGI-ROMANIA - DIGI ROMANIA S.A., RO Romania 1786880 73014509568
AS12310 iNES - iNES GROUP SRL, RO Romania 55808 4294967296
AS14259 Gtd Internet S.A., CL Chile 396288 8589934592
AS20912 ASN-PANSERVICE - Giuliano Claudio Peritore trading as "Panservice s.a.s. di Cuseo Fabrizio & C.", IT Italy 18432 4294967296
AS21700 NEPTUNE-NETWORKS - Neptune Networks, LLC, US United States 3840 4429185024
AS22652 FIBRENOIRE-INTERNET - Videotron Ltee, CA Canada 182784 8590065664
AS22850 PIT-US - PIT US, US United States 0 0
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 242176 1103806595072
AS31034 ARUBA-ASN - Aruba S.p.A., IT Italy 288512 27279753216
AS31510 IKB-AS - Innsbrucker Kommunalbetriebe AG, AT Austria 27904 4294967296
AS32709 1-JOINK - Joink, LLC, US United States 45056 4294967296
AS33185 HIVE-DATA-CENTER - Hive Data Center Inc., CA Canada 5632 268566528
AS40994 Alwyzon - Hohl IT e.U., AT Austria 4352 4294967296
AS41327 FIBERTELECOM-AS - Fiber Telecom S.p.A., IT Italy 7168 68719476736
AS47160 MOJI - MOJI SAS, FR France 5376 34393292800
AS53062 ALT | GRUPO BRASIL TECPAR, BR Brazil 32768 4504699155841024
AS59890 Kabel-TV-Lampert - Kabel-TV Lampert GmbH & Co KG, AT Austria 13312 34359738368
AS60068 CDN77 - Datacamp Limited, GB United Kingdom 116480 1191444480
AS61573 IP TELECOM, BR Brazil 1024 4294967296
AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD, AU Australia 103680 77403652096
AS148968 FALCORE-AS-AP - Falcore Investments Pty Ltd, AU Australia 3072 4295163904
AS199524 GCORE - G-Core Labs S.A., LU Luxembourg 120320 112721920
AS215596 Kissgroup - KISSGROUP SAS, FR France 3328 34359738368
AS262427 Invista Net Provedor de Acesso Ltda, BR Brazil 8192 4294967296
AS267613 ELETRONET S.A., BR Brazil 1024 21474836480
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

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