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Data as of Nov 9, 2026

154.57.137.0/24

Anonymizer · VPN

31173 Services AB · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS39351
Type
VPN
Risk
75 / 100 · High
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Feb 5, 1992
2 · Leased from
not leased
3 · Announced by
AS39351 31173 Services AB
since Oct 2025 · 13 mo ago
4 · Use
VPN servicesnamed Mullvad VPN
VPN

Operators, sellers and brokers

VPN services

NameParentIn 154.57.137.0/24/24s
Mullvad VPNMullvad VPN AB
256100%
1

Lineage

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

154.57.137.0/24

From the registry to its use

  1. Feb 5, 1992
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    154.57.0.0/16
  2. May 9, 2005– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 154.48.0.0/12
    154.48.0.0/12
  3. Mar 8, 2016– Jul 21, 2016
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  4. Sep 5, 2025
    Route object
    AS39351 31173 Services AB
    RADB route object for AS39351 31173 Services AB, maintainer MAINT-AS174
  5. Oct 3, 2025– today
    Announced
    AS39351 31173 Services AB
    Hosting
  6. today
    Used
    Mullvad VPN
    VPN

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesOperatorProxy exitsRPKI
154.48.0.0/12
since May 2005
AS174Internet provider9,9840.95%ISP proxyProxy providerssold by Oxylabs, QuarkIP12,881
2,432 always on

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS39351

SE
Name
31173 Services AB
Type
Hosting
Registered
Feb 6, 2006
Domain
31173.se
Website
www.31173.se
Spamhaus ASN-DROP
not listed
VPN servers
73