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Data as of Nov 7, 2026

38.204.128.0/17

No anonymizer space · no proxy exits in 30 days

Cogent Communications, LLC

Announcement
38.0.0.0/8
No RPKI
Announced by
AS174
Type
Internet provider
97% of it
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Apr 16, 1991
2 · Leased from
Rackdog
3 · Announced by
AS174 Cogent Communications, LLC
4 · Use
Internet provider

Announcements

More specific

Announcements inside

PrefixOriginTypeHolderRPKI
38.204.192.0/22
since Dec 2018
AS9009HostingCogent Communications, LLC

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

32,768 addresses
TypeAddressesShareRanges
Internet provider31,74497%2
Hosting1,0243.1%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 38.0.0.0/8

Prefix
38.0.0.0/8
Announced by
AS174 Cogent Communications, LLC
Type
Internet provider
Leased from
IP broker Rackdog (part)
Proxy exits
404,266
Always-on exits
78,035
RPKI
No RPKI
Netname
COGENT-A
Registrant
Cogent Communications, LLC
RIR
ARIN
Origin network

AS174

US
Name
Cogent Communications, LLC
Type
Internet provider
Registered
May 16, 1996
Domain
cogentco.com
Website
www.cogentco.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed
VPN servers
1,658