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Data as of Nov 14, 2026

154.21.26.0/23

Anonymizer · ISP proxy1 residential-proxy exit · 30 days

Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS174
Type
ISP proxy
Risk
90 / 100 · Critical

Residential-proxy exits

Proxy exits
1
0.20% of its addresses · 30 days
Spread
1 of 2
/24s with at least one exit
Providers
1
selling exits here
Oct 15, 2026 – Nov 13, 2026

Exits seen per day

1 observation

Proxy providers listing exits

  • Evomi
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Feb 5, 1992
2 · Leased from
not leased
3 · Announced by
AS174 Cogent Communications, LLC
since May 2022 · 4.5 yr ago
4 · Use
Proxy providersnamed Webshare
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 154.21.26.0/23/24s
Webshare
512100%
2

Lineage

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

154.21.26.0/23

From the registry to its use

  1. Feb 5, 1992
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    154.21.0.0/16
  2. Sep 10, 2018– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 154.21.0.0/16
    154.21.0.0/16
  3. May 4, 2022– today
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  4. today
    Used
    Webshare
    Proxy seller

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesOperatorProxy exitsHolderRPKI
154.21.0.0/16
since Sep 2018
AS174Internet provider1,2802.0%ISP proxy, VPNProxy providersoperated by High ProxiesVPN servicesoperated by TorGuard291
44 always on
Cogent Communications, LLC

Network & registry

AnnouncementRouting historyWhois & abuse
Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Stable
First seen
May 2022
Current origin since
May 2022 · 4.5 yr
Origin networks
1