Data as of Nov 7, 2026

38.12.0.0/17

No anonymizer space · no proxy exits in 30 days

Cogent Communications, LLC

Announcement
No RPKI
Announced by
Type
Hosting
50% of it
IPv4 market

Path

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

Announcements

More specific

Announcements inside

PrefixOriginTypeHolderRPKI
38.12.64.0/19
since Oct 2023
AS54600HostingCogent Communications, LLC
38.12.96.0/19
since Oct 2023
AS398823HostingCogent 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
Hosting16,38450%2
Internet provider16,38450%1

Network & registry

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