Data as of Nov 12, 2026

154.12.131.0/24

Anonymizer · ISP proxy

Cogent Communications, LLC

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

Path

1 · Holder
record created Feb 5, 1992
2 · Leased from
not leased
3 · Announced by
AS174 Cogent Communications, LLC
since Jun 2021 · 5.4 yr ago
4 · Use
Proxy providersnamed High Proxies
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 154.12.131.0/24/24s
High Proxies
256100%
1

Lineage

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

154.12.131.0/24

From the registry to its use

  1. Feb 5, 1992
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    154.12.0.0/16
  2. Jan 8, 2007– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 154.12.0.0/15
    154.12.0.0/15
  3. Jun 25, 2019– Dec 3, 2020
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  4. Jun 14, 2021– today
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  5. today
    Used
    High Proxies
    Proxy seller

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesOperatorLeased fromProxy exitsRPKI
154.12.0.0/15
since Jan 2007
AS174Internet provider5,6324.3%ISP proxyProxy providersoperated by High ProxiesIP broker Aventice (part)657
167 always on

Network & registry

Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Stable
First seen
Jun 2019
Current origin since
Jun 2021 · 5.4 yr
Origin networks
1