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Data as of Nov 9, 2026

142.173.208.0/21

Anonymizer · ISP proxy

Cox Communications Inc. · space held by TELUS Communications Inc.

Announcement
this exact prefix
RPKI valid
Announced by
AS22773
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin Nov 8, 2026
from AS6079 RCN
IPv4 market

Path

Announced by AS22773 since Nov 8, 2026 · this week
1 · Holder
TELUS Communications Inc.
record created Aug 26, 1992
2 · Leased from
Rackdog
for its owner TELUS Communications Inc.
3 · Announced by
AS22773 Cox Communications Inc.
since Nov 8, 2026 · this week
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 142.173.208.0/21/24s
Rackdog
2,048100%
8
Leased from

Owners leasing their own space

NameIn 142.173.208.0/21/24s
TELUS Communications Inc.
2,048100%
8

Lineage

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

142.173.208.0/21

From the registry to its use

  1. Aug 26, 1992
    Registry record
    TELUS Communications Inc.
    Direct Allocation (legacy, pre-1997)
    142.173.0.0/16
  2. Jul 16, 2024– Nov 19, 2025
    Announced
    AS7018 AT&T Enterprises, LLC
    as part of 142.173.208.0/20
    142.173.208.0/20
  3. Nov 8, 2025– Nov 3, 2026
    Announced
    AS20115 Charter Communications LLC
    as part of 142.173.208.0/20
    142.173.208.0/20
  4. Sep 3, 2026
    Route object
    AS6079 RCN
    ARIN route object for AS6079 RCN, maintainer MNT-TACE
  5. Sep 3, 2026
    Route object
    AS7843 Charter Communications Inc
    ARIN route object for AS7843 Charter Communications Inc, maintainer MNT-TACE
  6. Sep 3, 2026
    Route object
    AS22773 Cox Communications Inc.
    ARIN route object for AS22773 Cox Communications Inc., maintainer MNT-TACE
  7. Sep 4, 2026– Nov 7, 2026
    Announced
    AS6079 RCN
    Internet provider
  8. Nov 8, 2026– today
    Announced
    AS22773 Cox Communications Inc.
    Internet provider
  9. today
    Leased from
    IPv4.Global
    IP broker
  10. today
    Leased from
    Rackdog
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromRPKI
142.173.208.0/20
since Nov 2025
AS20115ISP proxyIP broker IPv4.Global, Rackdog

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS22773

US
Name
Cox Communications Inc.
Type
Internet provider
Registered
Nov 20, 2001
Domain
cox.com
Website
www.cox.com/peering
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed