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Data as of Nov 7, 2026

149.100.184.0/21

Anonymizer · ISP proxy1 residential-proxy exit · 30 days

Cogent Communications, LLC

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

Residential-proxy exits

Proxy exits
1
0.05% of its addresses · 30 days
Spread
1 of 8
/24s with at least one exit
Providers
1
selling exits here
Oct 8, 2026 – Nov 6, 2026

Exits seen per day

1 observation

Proxy providers listing exits

  • Proxying
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Jan 28, 1992
2 · Leased from
not leased
3 · Announced by
AS174 Cogent Communications, LLC
since Nov 2017 · 8.9 yr ago
4 · Use
Proxy providersnamed Oxylabs
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 149.100.184.0/21/24s
OxylabsTesonet
2,048100%
8

Lineage

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

149.100.184.0/21

From the registry to its use

  1. Jan 28, 1992
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    149.100.0.0/16
  2. Sep 15, 2006– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 149.100.0.0/16
    149.100.0.0/16
  3. Nov 26, 2017– today
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  4. today
    Used
    Oxylabs
    Proxy seller

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
149.100.0.0/16
since Sep 2006
AS174Internet provider898
496 always on
Cogent Communications, LLC

Network & registry

AnnouncementRouting historyWhois & abuse
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