Data as of Nov 3, 2026

154.29.136.0/23

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 Aug 2023 · 3.2 yr ago
4 · Use
Proxy providersnamed Kookeey
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 154.29.136.0/23/24s
Kookeey
512100%
2

Lineage

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

154.29.136.0/23

From the registry to its use

  1. Feb 5, 1992
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    154.29.0.0/16
  2. Sep 15, 2006– Nov 2, 2026
    Announced
    AS174 Cogent Communications, LLC
    as part of 154.24.0.0/13
    154.24.0.0/13
  3. Aug 15, 2023– Nov 2, 2026
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  4. today
    Used
    Kookeey
    Proxy seller

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesOperatorLeased fromProxy exitsRPKI
154.24.0.0/13
since Sep 2006
AS174Internet provider8,1921.6%ISP proxyProxy providerssold by OxylabsIP broker Aventice (part)2,798
1,331 always on

Network & registry

Origin network

AS174

US
Name
Cogent Communications, LLC
Type
Internet provider
Registered
May 16, 1996
Domain
cogentco.com
Website
www.cogentco.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed
VPN servers
1,658