Data as of Nov 14, 2026

154.13.138.0/24

Anonymizer · ISP proxy

Cogent Communications, LLC

Announcement

154.12.0.0/15

No RPKI

Announced by

AS174

Type

ISP proxy

Risk

90 / 100 · Critical

IPv4 market

Path

1 · Holder

Unnamed holder

2 · Leased from

Aventice

3 · Announced by

AS174 Cogent Communications, LLC

since Jan 2007 · 19.8 yr ago

4 · Use

ISP proxy

anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

Name	In 154.13.138.0/24	/24s
Aventice	256100%	1

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
154.13.0.0/16	65,536	COGENT-154-13-16	Cogent Communications, LLC (COGC) · US	Direct Allocation	Feb 5, 1992	abuse@cogentco.com
└ 154.13.136.0/21	2,048	AVENTICE-CGNT-NET-18	Aventice LLC (AL-584) · US	Reallocated	Dec 1, 2022	abuse@aventice.com
└ 154.13.138.0/24	256	WIFIBER-IKE	Wifiber IKE (C09233911) · US	Reassigned	Feb 20, 2023	abuse@aventice.com via AVENTICE-CGNT-NET-18

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

Announcement Routing history RPKI & IRR Whois & abuse

Routing timeline

Who has announced 154.12.0.0/15