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Data as of Nov 8, 2026

205.163.0.0/20

Anonymizer · ISP proxy

Windstream Communications LLC · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS7029
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Mar 8, 1995
2 · Leased from
Rackdog
for its owner Cogent Communications, LLC
3 · Announced by
AS7029 Windstream Communications LLC
since Aug 2025 · 15 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 205.163.0.0/20/24s
Rackdog
4,096100%
16
Leased from

Owners leasing their own space

NameIn 205.163.0.0/20/24s
Cogent Communications, LLC
4,096100%
16

Lineage

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

205.163.0.0/20

From the registry to its use

  1. Mar 8, 1995
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    205.160.0.0/14
  2. May 9, 2005– May 16, 2024
    Announced
    AS1239 Cogent Communications, LLC
    as part of 205.160.0.0/14
    205.160.0.0/14
  3. May 5, 2024– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 205.160.0.0/14
    205.160.0.0/14
  4. Aug 16, 2025– today
    Announced
    AS7029 Windstream Communications LLC
    Internet provider
  5. Aug 26, 2025
    Route object
    Rackdog
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS398465
  6. Oct 1, 2025
    Route object
    Rackdog
    RADB route object for AS3320 Deutsche Telekom AG, maintainer MAINT-AS398465
  7. May 27, 2026
    Assigned
    RCN
    Reassigned
    205.163.0.0/17
  8. Jul 29, 2026
    Route object
    AS398465 Rackdog, LLC
    RADB route object for AS398465 Rackdog, LLC, maintainer MAINT-AS22773
  9. today
    Leased from
    Rackdog
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
205.160.0.0/14
since May 2024
AS174Internet provider20
2 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
205.160.0.0/14262,144COGENT-205-160-0Cogent Communications, LLC (COGC) · USDirect AllocationMar 8, 1995abuse@cogentco.com
└ 205.163.0.0/1732,768RACKDOG-CGNT-NET-37RCN (C11605232) · USReassignedMay 27, 2026abuse@cogentco.com
via COGENT-205-160-0

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
205.160.0.0/14
Registration type
Direct Allocation
Record created
Mar 8, 1995
Legacy
yes
Origin network

AS7029

US
Name
Windstream Communications LLC
Type
Internet provider
Registered
Jul 30, 1996
Domain
uniti.com
Website
www.uniti.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed