Data as of Nov 3, 2026

154.53.72.0/23

Anonymizer · ISP proxy

Cogent Communications, LLC

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

Path

1 · Holder
2 · Leased from
not leased
3 · Announced by
AS174 Cogent Communications, LLC
since May 2005 · 21.5 yr ago
4 · Use
Proxy providersnamed QuarkIP
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 154.53.72.0/23/24s
QuarkIP
512100%
2

Network & registry

Announced by

Covering announcement 154.48.0.0/12

Prefix
154.48.0.0/12
Announced by
AS174 Cogent Communications, LLC
Type
Internet provider
Anonymizer addresses
9,984 addresses · 0.95%ISP proxy
Operator
Proxy providerssold by Oxylabs, QuarkIP
Proxy exits
12,738
Always-on exits
2,387
RPKI
No RPKI
RIR
ARIN
IPv4 market

Holder

Organization
Not stated by the registry
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