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Data as of Nov 14, 2026

63.175.32.0/19

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 63.175.32.0/19/24s
Rackdog
8,192100%
32
Leased from

Owners leasing their own space

NameIn 63.175.32.0/19/24s
Cogent Communications, LLC
8,192100%
32

Lineage

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

63.175.32.0/19

From the registry to its use

  1. Dec 3, 1999
    Registry record
    Cogent Communications, LLC
    Direct Allocation
    63.160.0.0/12
  2. Apr 16, 2008
    Route object
    AS16531 TOPNET SA de CV
    RADB route object for AS16531 TOPNET SA de CV, maintainer MAINT-AS3491
    63.175.44.0/23
  3. Nov 17, 2020
    Route object
    AS22684 SSI Micro Ltd.
    RADB route object for AS22684 SSI Micro Ltd., maintainer MAINT-AS852
    63.175.50.0/24
  4. Dec 2, 2025– today
    Announced
    AS4637 Telstra Global
    Internet provider
  5. May 27, 2026
    Assigned
    RCN
    Reassigned
    63.175.32.0/19
  6. Sep 18, 2026– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 63.160.0.0/12
    63.160.0.0/12
  7. today
    Leased from
    Rackdog
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
63.160.0.0/12AS174Internet provider189
23 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
└ 63.175.32.0/198,192RACKDOG-CGNT-NET-129RCN (C11605375) · 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
Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Stable
First seen
Dec 2025
Current origin since
Dec 2025 · 11 mo
Origin networks
1