Data as of Nov 7, 2026

38.181.0.0/18

No anonymizer space · no proxy exits in 30 days

Cogent Communications, LLC

Announcement
No RPKI
Announced by
Type
Internet provider
59% of it
IPv4 market

Path

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

Announcements

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific

Announcements inside

PrefixOriginTypeHolderRPKI
38.181.4.0/24
since Nov 2, 2026
AS140227HostingCogent Communications, LLC
via Hong Kong Communications International CO.,LIMITED
38.181.5.0/24
since Nov 2, 2026
AS140227HostingCogent Communications, LLC
via Hong Kong Communications International CO.,LIMITED
38.181.40.0/21
since Mar 2024
AS8796HostingCogent Communications, LLC
via Hong Kong Communications International CO.,LIMITED
38.181.48.0/24
since Nov 2, 2026
AS140227HostingCogent Communications, LLC
via Hong Kong Communications International CO.,LIMITED
38.181.49.0/24
since Nov 2, 2026
AS140227HostingCogent Communications, LLC
via Hong Kong Communications International CO.,LIMITED
38.181.50.0/24
since Nov 2, 2026
AS140227HostingCogent Communications, LLC
via Hong Kong Communications International CO.,LIMITED
38.181.51.0/24
since Nov 2, 2026
AS140227HostingCogent Communications, LLC
via Hong Kong Communications International CO.,LIMITED
38.181.52.0/24
since Nov 2, 2026
AS140227HostingCogent Communications, LLC
via Hong Kong Communications International CO.,LIMITED
38.181.53.0/24
since Nov 2, 2026
AS140227HostingCogent Communications, LLC
via Hong Kong Communications International CO.,LIMITED
38.181.54.0/24
since Nov 2, 2026
AS140227HostingCogent Communications, LLC
via Hong Kong Communications International CO.,LIMITED
38.181.55.0/24
since Nov 2, 2026
AS140227HostingCogent Communications, LLC
via Hong Kong Communications International CO.,LIMITED
38.181.56.0/21
since Mar 2024
AS8796HostingCogent Communications, LLC
via Hong Kong Communications International CO.,LIMITED

Composition

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

Announced space

Address share

Announced space

Types across the prefix

16,384 addresses
TypeAddressesShareRanges
Internet provider9,72859%2
Hosting6,65641%12

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