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Data as of Nov 7, 2026

63.160.204.0/22

Anonymizer · ISP proxy

RCN · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS6079
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
AS6079 RCN
since Sep 2024 · 2.1 yr ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 63.160.204.0/22/24s
Rackdog
1,024100%
4
Leased from

Owners leasing their own space

NameIn 63.160.204.0/22/24s
Cogent Communications, LLC
1,024100%
4

Lineage

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

63.160.204.0/22

From the registry to its use

  1. Dec 3, 1999
    Registry record
    Cogent Communications, LLC
    Direct Allocation
    63.160.0.0/12
  2. Dec 4, 2020– Jan 8, 2021
    Announced
    AS1239 Cogent Communications, LLC
  3. May 5, 2024– May 16, 2024
    Announced
    AS1239 Cogent Communications, LLC
  4. Sep 14, 2024– Sep 25, 2024
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  5. Sep 20, 2024
    Route object
    Rackdog
    RADB route object for AS6079 RCN, maintainer MAINT-AS398465
  6. Sep 20, 2024
    Route object
    Rackdog
    RADB route object for AS11404 Wave Broadband, maintainer MAINT-AS398465
  7. Sep 26, 2024– today
    Announced
    AS6079 RCN
    Internet provider
  8. Nov 13, 2024– Dec 6, 2024
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  9. Apr 6, 2025
    Route object
    Rackdog
    RADB route object for AS398465 Rackdog, LLC, maintainer MAINT-AS398465
  10. May 27, 2026
    Assigned
    RCN
    Reassigned
    63.160.204.0/22
  11. Sep 18, 2026– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 63.160.0.0/12
    63.160.0.0/12
  12. 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
└ 63.160.204.0/221,024RACKDOG-CGNT-NET-121RCN (C11605367) · 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

AS6079

US
Name
RCN
Type
Internet provider
Registered
Apr 4, 2001
Domain
astound.com
Website
www.astound.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed