Data as of Nov 13, 2026

154.37.68.0/22

Anonymizer · Datacenter proxy6 residential-proxy exits · 30 days

M247 Europe SRL · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
Type
Datacenter proxy
Risk
85 / 100 · Critical

Residential-proxy exits

Proxy exits
6
0.59% of its addresses · 30 days
Oct 14, 2026 – Nov 12, 2026

Exits seen per day

7 observations
IPv4 market

Path

1 · Holder
record created Feb 5, 1992 · reallocated to Aventice LLC Dec 8, 2021
2 · Leased from
3 · Announced by
AS9009 M247 Europe SRL
since Nov 2021 · 5.0 yr ago
4 · Use
Datacenter proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 154.37.68.0/22/24s
Aventice
1,024100%
4
Leased from

Owners leasing their own space

NameIn 154.37.68.0/22/24s
Cogent Communications, LLC
1,024100%
4

Lineage

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

154.37.68.0/22

From the registry to its use

  1. Feb 5, 1992
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    154.37.0.0/16
  2. Sep 15, 2006– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 154.36.0.0/14
    154.36.0.0/14
  3. Nov 29, 2021– today
    Announced
    AS9009 M247 Europe SRL
    Hosting
  4. Dec 8, 2021
    Reallocated
    Aventice LLC
    Reallocated
    154.37.64.0/18
  5. Mar 21, 2023
    Route object
    AS9009 M247 Europe SRL
    RADB route object for AS9009 M247 Europe SRL, maintainer MAINT-AS9009
  6. today
    Leased from
    Aventice
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesLeased fromProxy exitsRPKI
154.36.0.0/14
since Sep 2006
AS174Internet provider3,3281.3%ISP proxyIP broker Aventice (part)2,153
584 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
154.37.0.0/1665,536COGENT-154-37-16Cogent Communications, LLC (COGC) · USDirect AllocationFeb 5, 1992abuse@cogentco.com
└ 154.37.64.0/1816,384AVENTICE-CGNT-NET-14Aventice LLC (AL-584) · USReallocatedDec 8, 2021abuse@aventice.com

Network & registry

Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Stable
First seen
Nov 2021
Current origin since
Nov 2021 · 5.0 yr
Origin networks
1