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
AS2497 IIJ - Internet Initiative Japan Inc., JP Japan 3842560 17716871168
AS2500 WIDE-BB - WIDE Project, JP Japan 65536 4294967296
AS2516 KDDI - KDDI CORPORATION, JP Japan 18035712 2761664036864
AS2907 SINET-AS - Research Organization of Information and Systems, National Institute of Informatics, JP Japan 8883264 8589934592
AS2914 NTT-DATA-2914 - NTT America, Inc., US United States 7224832 30065098752
AS4229 ZEN-NET - Zenlayer Inc, US United States 6656 4294967296
AS4777 APNIC-COLO - Asia Pacific Network Information Centre, AU Australia 512 1073741824
AS4788 TTSSB-MY - TM TECHNOLOGY SERVICES SDN BHD, MY Malaysia 3219456 4300603392
AS6453 AS6453 - TATA COMMUNICATIONS (AMERICA) INC, US United States 572928 55834705920
AS6939 HURRICANE - Hurricane Electric LLC, US United States 582656 282627370713088
AS8220 COLT - COLT Technology Services Group Limited, GB United Kingdom 1496320 25770590208
AS9002 RETN-AS - RETN Limited, GB United Kingdom 38400 4294967296
AS9304 HUTCHISON-AS-AP - HGC Global Communications Limited, HK Hong Kong 1948416 12884967424
AS15412 FLAG-AS - FLAG TELECOM UK LIMITED, GB United Kingdom 36096 4294967296
AS18106 VIEWQWEST-SG-AP - Viewqwest Pte Ltd, SG Singapore 53248 13153337344
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 20992 4294967296
AS25152 K-ROOT-SERVER - Reseaux IP Europeens Network Coordination Centre (RIPE NCC), NL Netherlands 512 4294967296
AS35280 F5 - F5 Networks SARL, FR France 53760 81604378624
AS49544 i3Dnet - i3D.net B.V, NL Netherlands 97792 352458178560
AS59105 HOMENOC - Home NOC Operators Group, JP Japan 2048 4294967296
AS60068 CDN77 - Datacamp Limited, GB United Kingdom 116224 1174667264
AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD, AU Australia 100608 77403652096
AS140570 HKBCS-AS-AP - Hong Kong Beecloud System Technology Services Limited, HK Hong Kong 4608 65536

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

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