Summary

NetName
COGENT-A
OrgName
Cogent Communications, LLC
CIDR
RIR

ARIN

Country / Region

Status

Direct Allocation

Abuse

abuse@cogentco.com

Contact

ipalloc@cogentco.com

RegDate

1991-04-16

Updated

2025-09-23

Routing

AS Desc Country / Region IPv4 NUMs IPv6 NUMs
AS174 COGENT-174 - Cogent Communications, LLC, US United States 36233472 215834689537
AS553 BELWUE - Universitaet Stuttgart, DE Germany 2115840 103079215104
AS559 Switch - SWITCH, CH Switzerland 2184960 176093790208
AS1267 ASN-WINDTRE - WIND TRE S.P.A., IT Italy 7402752 2233382993920
AS1299 TWELVE99 - Arelion Sweden AB, SE Sweden 411392 77326778368
AS1764 NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT Austria 84736 236223463424
AS1836 GREEN - green.ch AG, CH Switzerland 492032 68719673344
AS2518 BIGLOBE - BIGLOBE Inc., JP Japan 3670016 38654705664
AS3214 XTOM - xTom GmbH, DE Germany 30464 107828477952
AS3257 GTT-BACKBONE - GTT Communications Inc., US United States 8552448 442382745600
AS4230 CLARO S.A., BR Brazil 5155584 21475098624
AS4455 BSO - IX Reach Ltd, GB United Kingdom 64256 12884967424
AS5405 INTERDOTLINK - Inter.link GmbH, DE Germany 3072 34359738368
AS6057 Administracion Nacional de Telecomunicaciones, UY Uruguay 2155520 68719476736
AS6204 ZET-NET - INTERKVM HOST SRL, RO Romania 3840 268500999
AS6663 TTI-NET - Euroweb Romania S.R.L., RO Romania 39680 6442450944
AS6695 DECIX-AS - DE-CIX Management GmbH, DE Germany 0 0
AS6797 GLOBALCONNECT-NET - GlobalConnect AB, SE Sweden 17920 12884901888
AS6939 HURRICANE - Hurricane Electric LLC, US United States 458496 283043982606336
AS7195 EDGEUNO S.A.S, CO Colombia 32000 4274061312
AS7713 telkomnet-as-ap - Telekomunikasi Indonesia (PT), ID Indonesia 4276480 12885032962
AS8218 NEO-ASN - Zayo Infrastructure France SA, FR France 47104 12884967424
AS8298 IPNG - IPng Networks GmbH, CH Switzerland 768 34359803904
AS8529 OMANTEL-AS - Zain Omantel International FZ-LLC, AE United Arab Emirates 13824 34360262656
AS8551 BEZEQ-INTERNATIONAL-AS - Bezeq International Ltd., IL Israel 997120 171798757376
AS8758 IWAY - Iway AG, CH Switzerland 175872 113816633344
AS9498 BBIL-AP - Bharti Airtel Limited, IN India 2296576 4299358208
AS12577 MMC-AT-AS - MMC GmbH, AT Austria 9216 34359738368
AS12779 ITGATE - IT.Gate S.p.A., IT Italy 47104 42949869568
AS12859 NL-BIT - BIT BV, NL Netherlands 59392 158964449280
AS12956 TELXIUS - TELEFONICA GLOBAL SOLUTIONS SL, ES Spain 101632 12884901888
AS13058 serve-u-AS - serve-u - Buchholz und Suenderhauf GbR, DE Germany 2048 34359738368
AS13237 LAMBDANET-AS - euNetworks GmbH, DE Germany 570112 107374182400
AS14537 CL-1379-14537 - Continent 8 LLC, US United States 65536 12884901888
AS14630 INVESCO - Invesco Group Services, Inc., US United States 7936 38671482880
AS14840 BR.Digital Telecom, BR Brazil 72960 14010613760
AS15547 NETPLUS - netplus.ch SA, CH Switzerland 135424 42949672960
AS15943 WTNET-AS - wilhelm.tel GmbH, DE Germany 354560 38654836736
AS18106 VIEWQWEST-SG-AP - Viewqwest Pte Ltd, SG Singapore 53248 13153337344
AS20764 RASCOM-AS - CJSC RASCOM, RU Russian Federation 13312 34359738368
AS20932 SIG-ST - Services Industriels de Geneve, CH Switzerland 9472 4294967296
AS21412 CGATES-AS - UAB "Cgates", LT Lithuania 157696 77309411328
AS22356 Durand do Brasil Ltda, BR Brazil 25856 4294967296
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 20992 4294967296
AS24961 MYLOC-AS - WIIT AG, DE Germany 132352 34661924864
AS25091 IP-Max - IP-Max SA, CH Switzerland 15104 68719607808
AS25160 VORBOSS - Vorboss Limited, GB United Kingdom 97024 103079215104
AS25220 GLOBALNOC-AS - equada network GmbH, DE Germany 30720 21474836480
AS28458 IENTC S DE RL DE CV, MX Mexico 45568 4295032832
AS28716 RETELIT-AS - Retelit Digital Services S.p.A., IT Italy 110080 107374182400
AS29075 IELO - IELO-LIAZO SERVICES SAS, FR France 31232 107374247936
AS29140 HOSTSERVER-AS - Hostserver GmbH, DE Germany 5120 4294967296
AS29691 NINE - Nine Internet Solutions AG, CH Switzerland 29184 38654771200
AS31510 IKB-AS - Innsbrucker Kommunalbetriebe AG, AT Austria 27904 4294967296
AS33891 CORE-BACKBONE - Core-Backbone GmbH, DE Germany 0 0
AS34019 HIVANE - Hivane Association, FR France 2560 1245184
AS34177 CELESTE-AS - Celeste SAS, FR France 229376 98784247808
AS34927 iFog-GmbH - iFog GmbH, CH Switzerland 9728 328925184
AS35280 F5 - F5 Networks SARL, FR France 55808 81604378624
AS35360 GARGUNET - Frederic Gargula, CH Switzerland 1024 34359738368
AS35598 INETCOM - INETCOM CARRIER LLC, RU Russian Federation 41472 34359738368
AS35625 EUROFIBER-FRANCE - Eurofiber France SAS, FR France 31488 103095992320
AS35710 WEBERCLOUD - weber.digital GmbH, DE Germany 3328 103079215104
AS37100 SEACOM-AS - SEACOM Limited, MU Mauritius 1072896 12884901888
AS37721 Virtual-Technologies-Solutions-SA - Virtual Technologies & Solutions, BF Burkina Faso 15872 8589934592
AS39120 CONVERGENZE-AS - Convergenze S.p.A., IT Italy 42496 17179869184
AS39351 ESAB-AS - 31173 Services AB, SE Sweden 14592 12886081536
AS39642 Sinal-AS - Sinal A/S, DK Denmark 560128 146028953600
AS41327 FIBERTELECOM-AS - Fiber Telecom S.p.A., IT Italy 7168 68719476736
AS42541 FIBERBY - Fiberby ApS, DK Denmark 11008 34359738368
AS47147 AS-ANX - Anexia Cloud Solutions GmbH, AT Austria 1536 131072
AS47692 NESSUS - Nessus GmbH, AT Austria 37376 34359869440
AS48237 MOBILY-AS - Etihad Etisalat, a joint stock company, SA Saudi Arabia 0 0
AS48362 TKSWF-AS - Stadtwerke Feldkirch, AT Austria 7936 4294967296
AS48919 UA-CITY-AS - UACITY Ltd., UA Ukraine 3072 65536
AS49544 i3Dnet - i3D.net B.V, NL Netherlands 116992 356753080320
AS51184 FONIRA - Fonira Telekom GmbH, AT Austria 13824 111669149696
AS52075 WIFIRST - Wifirst S.A.S., FR France 132352 34359738368
AS56987 AS-ABACLOUDA - ABACLOUDA SAS, FR France 1280 34359738368
AS58057 SECUREBIT - Securebit AG, CH Switzerland 3840 60130983936
AS58511 ANYCAST-GLOBAL-BACKBONE - Anycast Holdings Pty Ltd, AU Australia 22528 8589934592
AS60602 INOVARE-AS - Inovare-Prim SRL, MD Moldova 3584 4294967296
AS62167 Tismi - Tismi BV, NL Netherlands 3328 8590000128
AS64475 FREIFUNK-FRANKFURT - Freifunk Frankfurt am Main e.V., DE Germany 1024 16842752
AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD, AU Australia 140800 77423378434
AS198385 AlpineDC - AlpineDC SA, CH Switzerland 8192 38654705664
AS199524 GCORE - G-Core Labs S.A., LU Luxembourg 125952 118226945
AS199938 NETZWERGE - Netzwerge GmbH, DE Germany 2048 34359803904
AS205112 PHILUNET - PHILUNET GmbH, DE Germany 3328 73014509568
AS206356 Freifunk-Essen - Freifunk Essen e.V., DE Germany 768 34359738368
AS209823 ENKI-AS - Enki Multimedia EURL, FR France 768 4295360512
AS210937 Showfom - Xiufeng Guo, DE Germany 512 131072
AS212483 level86 - LEVEL EIGHTY-SIX COMMUNICATIONS LTD, GB United Kingdom 0 2031616
AS213151 CHRISELSEN - Christian Elsen, DE Germany 256 33619968
AS264479 Turbozone Internet, BR Brazil 2560 4294967296
AS272403 RAFAEL RIGOBERTO LOPEZ OROZCO, MX Mexico 4096 4294967296

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

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

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

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