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Data as of Nov 3, 2026

154.13.200.0/22

Anonymizer · ISP proxy

Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS174
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Feb 5, 1992 · reallocated to Aventice LLC Dec 8, 2021
2 · Leased from
Aventice
3 · Announced by
AS174 Cogent Communications, LLC
since Feb 2023 · 3.7 yr ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 154.13.200.0/22/24s
Aventice
1,024100%
4

Lineage

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

154.13.200.0/22

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– Nov 2, 2026
    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. Dec 11, 2021– Apr 9, 2022
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  5. Feb 28, 2023– Nov 2, 2026
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  6. today
    Leased from
    Aventice
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesOperatorLeased fromProxy exitsRPKI
154.12.0.0/15
since Jan 2007
AS174Internet provider9,2167.0%ISP proxyProxy providersoperated by High ProxiesIP broker Aventice (part)618
171 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, 1992[email protected]
└ 154.13.192.0/1816,384AVENTICE-CGNT-NET-3Aventice LLC (AL-584) · USReallocatedDec 8, 2021[email protected]

Network & registry

AnnouncementRouting historyWhois & abuse
IPv4 market

Holder

Holder in the market →
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