Data as of Nov 8, 2026

63.164.208.0/20

512 anonymizer addresses · 13% · ISP proxy

Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
Type
Hosting
88% of it
IPv4 market

Path

1 · Holder
record created Dec 3, 1999
2 · Leased from
not leased
3 · Announced by
AS174 Cogent Communications, LLC
since Feb 2026 · 8 mo ago
4 · Use
Hosting
anonymizer space, operator not named

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

63.164.208.0/20

From the registry to its use

  1. Dec 3, 1999
    Registry record
    Cogent Communications, LLC
    Direct Allocation
    63.160.0.0/12
  2. Feb 3, 2009
    Route object
    AS20456 JAB Wireless, INC.
    RADB route object for AS20456 JAB Wireless, INC., maintainer MAINT-AS26554
    63.164.208.0/21
  3. Feb 24, 2026– today
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  4. Sep 18, 2026– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 63.160.0.0/12
    63.160.0.0/12

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
63.160.0.0/12AS174Internet provider183
37 always on
Cogent Communications, LLC

Composition

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

Announced space

Address share

Announced space

Types across the prefix

4,096 addresses
TypeAddressesShareRanges
Hosting3,58488%3
ISP proxyanonymizer51213%2

Network & registry

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