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Data as of Nov 5, 2026

154.21.214.0/23

No anonymizer space · no proxy exits in 30 days

Cogent Communications, LLC

Announcement
154.21.0.0/16
No RPKI
Announced by
AS174
Type
Hosting
50% of it

Announcements

More specific

Announcements inside

PrefixOriginTypeHolderRPKI
154.21.214.0/24
since Sep 2021
AS174UnknownCogent Communications, LLC
154.21.215.0/24
since Sep 28, 2026
AS56504HostingCogent Communications, LLC

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
154.21.0.0/1665,536COGENT-154-21-16Cogent Communications, LLC (COGC) · USDirect AllocationFeb 5, 1992abuse@cogentco.com
└ 154.21.214.0/23512NET-154-21-214-0-1Great King Electric Co, LTD. (C07507266) · GBReassignedFeb 19, 2020abuse@cogentco.com
via COGENT-154-21-16

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
Hosting25650%1
Unknown25650%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 154.21.0.0/16

Prefix
154.21.0.0/16
Announced by
AS174 Cogent Communications, LLC
Type
Internet provider
Proxy exits
282
Always-on exits
45
RPKI
No RPKI
Netname
COGENT-154-21-16
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