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Data as of Nov 5, 2026

63.175.205.0/24

No anonymizer space · no proxy exits in 30 days

Level 3 Parent, LLC · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS203
Type
Unknown
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Aug 2026
from AS6109 NDCHealth Corporation

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
63.160.0.0/12AS174Internet provider178
37 always on
Cogent 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
63.160.0.0/121,048,576COGENT-63-160-0Cogent Communications, LLC (COGC) · USDirect AllocationDec 3, 1999abuse@cogentco.com
└ 63.175.205.0/24256NDCHEALTHNDC/CORPORATE (NDCCOR-1) · USReassignedJan 16, 2003—

Network & registry

AnnouncementRouting historyWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Cogent Communications, LLC
Handle
COGC
Range
63.160.0.0/12
Registration type
Direct Allocation
Record created
Dec 3, 1999
Origin network

AS203

US
Name
Level 3 Parent, LLC
Type
Internet provider
Registered
Jun 5, 2002
Domain
level3.com
Industry
Hosting and Cloud Provider
Spamhaus ASN-DROP
not listed