Data as of Nov 9, 2026

38.128.9.0/24

Anonymizer · ISP proxy

Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recently moved
Recent change
New origin Sep 24, 2026
from AS55066 eStruxture Data Centers Inc.
IPv4 market

Path

Announced by AS174 since Sep 24, 2026 · 7 wk ago
1 · Holder
record created Apr 16, 1991
2 · Leased from
not leased
3 · Announced by
AS174 Cogent Communications, LLC
since Sep 24, 2026 · 7 wk ago
4 · Use
ISP proxy
anonymizer space, operator not named

Lineage

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

38.128.9.0/24

From the registry to its use

  1. Apr 16, 1991
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    38.0.0.0/8
  2. Jan 19, 2026– Sep 21, 2026
    Announced
    AS55066 eStruxture Data Centers Inc.
    Hosting
  3. Jan 27, 2026
    Route object
    AS55066 eStruxture Data Centers Inc.
    ARIN route object for AS55066 eStruxture Data Centers Inc., maintainer MNT-COGC
  4. Sep 18, 2026– Nov 8, 2026
    Announced
    AS174 Cogent Communications, LLC
    as part of 38.0.0.0/8
    38.0.0.0/8
  5. Sep 24, 2026– Nov 8, 2026
    Announced
    AS174 Cogent Communications, LLC
    Internet provider

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesOperatorLeased fromProxy exitsHolderRPKI
38.0.0.0/8AS174Internet provider62,7260.37%ISP proxy, Datacenter proxy, VPNProxy providerssold by Oxylabs, QuarkIP, HypeProxy, Novada, MyPrivateProxyVPN servicesoperated by Windscribe, VPN GateIP broker Rackdog (part)403,145
78,303 always on
Cogent Communications, LLC

Network & 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