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Data as of Nov 7, 2026

204.241.18.0/23

No anonymizer space · no proxy exits in 30 days

Cogent Communications, LLC

Announcement
204.240.0.0/14
No RPKI
Announced by
AS174
Type
Business
50% of it

Announcements

More specific

Announcements inside

PrefixOriginTypeHolderRPKI
204.241.18.0/24
since Sep 2006
AS27514BusinessCogent Communications, LLC

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
204.240.0.0/14262,144COGENT-204-240-14Cogent Communications, LLC (COGC) · USDirect AllocationDec 20, 1994abuse@cogentco.com
└ 204.241.18.0/23512PSI-CIDR04-18PSINet/Kingdom Capital (C00006082) · USReassignedMay 5, 1995abuse@cogentco.com
via COGENT-204-240-14

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Composition

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

Announced space

Address share

Announced space

Types across the prefix

512 addresses
TypeAddressesShareRanges
Business25650%1
Internet provider25650%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 204.240.0.0/14

Prefix
204.240.0.0/14
Announced by
AS174 Cogent Communications, LLC
Type
Internet provider
RPKI
No RPKI
Netname
COGENT-204-240-14
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