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Data as of Nov 14, 2026

38.210.66.0/23

No anonymizer space · no proxy exits in 30 days

CSC63 · space held by Cogent Communications, LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS274428
Type
Business
Recent change
New origin Aug 2026
from AS273770, after 1.1 years unannounced

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromProxy exitsHolderRPKI
38.0.0.0/8AS174Internet providerIP broker Rackdog (part)397,758
74,175 always on
Cogent Communications, LLC
More specific

Announcements inside

PrefixOriginTypeHolderRPKI
38.210.66.0/24
since Aug 2026
AS274428BusinessCogent Communications, LLC
38.210.67.0/24
since Aug 2026
AS274428BusinessCogent Communications, LLC

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
38.0.0.0/816,777,216COGENT-ACogent Communications, LLC (COGC) · USDirect AllocationApr 16, 1991abuse@cogentco.com
└ 38.210.66.0/23512CHMO-CGNT-NET-1Chmo Servicios (C11686933) · MXReassignedAug 20, 2026abuse@cogentco.com
via COGENT-A

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

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Cogent Communications, LLC
Handle
COGC
Range
38.0.0.0/8
Registration type
Direct Allocation
Record created
Apr 16, 1991
Legacy
yes
Origin network

AS274428

MX
Name
CSC63
Type
Business
Registered
Jul 22, 2026
Domain
lunainternet.com
Spamhaus ASN-DROP
not listed