Data as of Nov 8, 2026

154.13.198.0/23

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 · reallocated to Aventice LLC Dec 8, 2021
2 · Leased from
3 · Announced by
AS174 Cogent Communications, LLC
since Feb 2022 · 4.7 yr ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 154.13.198.0/23/24s
Aventice
512100%
2

Lineage

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

154.13.198.0/23

From the registry to its use

  1. Feb 5, 1992
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    154.13.0.0/16
  2. Jan 8, 2007– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 154.12.0.0/15
    154.12.0.0/15
  3. Dec 8, 2021
    Reallocated
    Aventice LLC
    Reallocated
    154.13.192.0/18
  4. Feb 9, 2022– today
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  5. today
    Leased from
    Aventice
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesOperatorLeased fromProxy exitsRPKI
154.12.0.0/15
since Jan 2007
AS174Internet provider1,0240.78%ISP proxyProxy providersoperated by High ProxiesIP broker Aventice (part)630
184 always on

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
154.13.0.0/1665,536COGENT-154-13-16Cogent Communications, LLC (COGC) · USDirect AllocationFeb 5, 1992abuse@cogentco.com
└ 154.13.192.0/1816,384AVENTICE-CGNT-NET-3Aventice LLC (AL-584) · USReallocatedDec 8, 2021abuse@aventice.com

Network & registry

IPv4 market

Holder

Organization
Cogent Communications, LLC
Handle
COGC
Range
154.13.0.0/16
Registration type
Direct Allocation
Record created
Feb 5, 1992
Legacy
yes
Reallocated to
Aventice LLC (AL-584)
Reallocated range
154.13.192.0/18
Reallocated
Dec 8, 2021
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