LAYER3 INTEL
Get started
Sign in
Data as of Nov 7, 2026

63.161.224.0/19

Anonymizer · ISP proxy

Telstra Global · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS4637
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Dec 3, 1999
2 · Leased from
Rackdog
for its owner Cogent Communications, LLC
3 · Announced by
AS4637 Telstra Global
since Dec 2025 · 11 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 63.161.224.0/19/24s
Rackdog
8,192100%
32
Leased from

Owners leasing their own space

NameIn 63.161.224.0/19/24s
Cogent Communications, LLC
8,192100%
32

Lineage

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

63.161.224.0/19

From the registry to its use

  1. Dec 3, 1999
    Registry record
    Cogent Communications, LLC
    Direct Allocation
    63.160.0.0/12
  2. Dec 29, 2008
    Route object
    AS27884 Cablecolor S.A.
    RADB route object for AS27884 Cablecolor S.A., maintainer MAINT-AS3491
    63.161.232.0/21
  3. Dec 2, 2025– today
    Announced
    AS4637 Telstra Global
    Internet provider
  4. May 27, 2026
    Assigned
    RCN
    Reassigned
    63.161.224.0/19
  5. Sep 18, 2026– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 63.160.0.0/12
    63.160.0.0/12
  6. today
    Leased from
    Rackdog
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
63.160.0.0/12AS174Internet provider181
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
└ 63.161.224.0/198,192RACKDOG-CGNT-NET-126RCN (C11605372) · USReassignedMay 27, 2026abuse@cogentco.com
via COGENT-63-160-0

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
63.160.0.0/12
Registration type
Direct Allocation
Record created
Dec 3, 1999
Origin network

AS4637

HK
Name
Telstra Global
Type
Internet provider
Registered
Oct 30, 1995
Domain
telstrainternational.com
Website
www.telstrainternational.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed