Data as of Nov 6, 2026

149.51.96.0/21

Anonymizer

Cogent Communications, LLC

Announcement
No RPKI
Announced by
Type
Datacenter proxy
50% of it
IPv4 market

Path

1 · Holder
2 · Leased from
its owner, directly
3 · Announced by
AS174 Cogent Communications, LLC
since Sep 2006 · 20.1 yr ago
4 · Use
Proxy providersnamed SkyQuantum, Novada
Datacenter proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 149.51.96.0/21/24sRole
SkyQuantum
51225%
2
Runs it
Novada
25613%
1
Sells it
Runs itSells it
Leased from

Owners leasing their own space

NameIn 149.51.96.0/21/24s
Cogent Communications, LLC
1,53675%
6

Announcements

More specific

Announcements inside

PrefixOriginTypeOperatorLeased fromHolderRPKI
149.51.96.0/23
since Dec 2025
AS23532ISP proxyIP broker RackdogCogent Communications, LLC
via Wisdom Cloud Internet Technology Pte. Ltd
149.51.98.0/23
since Dec 2025
AS202736Datacenter proxyIP broker RackdogCogent Communications, LLC
via Wisdom Cloud Internet Technology Pte. Ltd
149.51.100.0/23
since Apr 2026
AS197537Datacenter proxyIP broker RackdogCogent Communications, LLC
via Wisdom Cloud Internet Technology Pte. Ltd
149.51.102.0/24
since Sep 22, 2026
AS174ISP proxyProxy providersoperated by SkyQuantumIP broker RackdogCogent Communications, LLC
via Wisdom Cloud Internet Technology Pte. Ltd
149.51.103.0/24
since Sep 22, 2026
AS174ISP proxyProxy providersoperated by SkyQuantumsold by NovadaIP broker RackdogCogent Communications, LLC
via Wisdom Cloud Internet Technology Pte. Ltd

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
149.51.0.0/1665,536COGENT-149-51-16Cogent Communications, LLC (COGC) · USDirect AllocationJan 28, 1992abuse@cogentco.com
└ 149.51.64.0/1816,384WISDOM-CLOUD-CGNT-NET-12Wisdom Cloud Internet Technology Pte. Ltd (WCITPL) · SGReallocatedDec 29, 2025abuse@wisdomisp.com

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

2,048 addresses
TypeAddressesShareRanges
Datacenter proxyanonymizer1,02450%2
ISP proxyanonymizer1,02450%3

Network & registry

Announced by

Covering announcement 149.50.0.0/15

Prefix
149.50.0.0/15
Announced by
AS174 Cogent Communications, LLC
Type
Internet provider
Anonymizer addresses
none
Leased from
IP broker Rackdog (part)
Proxy exits
3,359
Always-on exits
946
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