Data as of Nov 5, 2026

38.243.0.0/16

Anonymizer · Datacenter proxy

Rackdog, LLC · space held by Cogent Communications, LLC

Announcement

this exact prefix

No RPKI

Announced by

AS398465

Type

Datacenter proxy

IPv4 market

Path

1 · Holder

Cogent Communications, LLC

record created Apr 16, 1991

2 · Leased from

Rackdog

for its owner Cogent Communications, LLC

3 · Announced by

AS398465 Rackdog, LLC

since Dec 2025 · 11 mo ago

4 · Use

Datacenter proxy

anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

Name	In 38.243.0.0/16	/24s
Rackdog	65,536100%	256

Leased from

Owners leasing their own space

Name	In 38.243.0.0/16	/24s
Cogent Communications, LLC	65,536100%	256

Lineage

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

38.243.0.0/16

From the registry to its use

Apr 16, 1991
Registry record
Cogent Communications, LLC
Direct Allocation (legacy, pre-1997)
38.0.0.0/8
Dec 2, 2025– today
Announced
AS398465 Rackdog, LLC
Hosting
Dec 8, 2025
Route object
Rackdog
RADB route object for AS398465 Rackdog, LLC, maintainer MAINT-AS398465
May 27, 2026
Assigned
RCN
Reassigned
38.243.0.0/16
Sep 18, 2026– today
Announced
AS174 Cogent Communications, LLC
as part of 38.0.0.0/8
38.0.0.0/8
today
Leased from
Rackdog
IP broker

Announcements

Less specific

Covering announcements

Prefix	Origin	Type	Anonymizer addresses	Operator	Leased from	Proxy exits	Holder	RPKI
38.0.0.0/8	AS174	Internet provider	68,8690.41%ISP proxy, Datacenter proxy, VPN	Proxy providerssold by Oxylabs, QuarkIP, Novada, HypeProxy, MyPrivateProxyVPN servicesoperated by Windscribe	IP broker Rackdog (part)	406,815 77,739 always on	Cogent Communications, LLC

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.

More specific

Announcements inside

Arrived

Sort

Prefix	Origin	Type	Leased from	Holder
38.243.0.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.1.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.2.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.3.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.4.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.5.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.6.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.7.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.8.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.9.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.10.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.11.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.12.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.13.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.14.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.15.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.16.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.17.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.18.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.19.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.20.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.21.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.22.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.23.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.24.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.25.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.26.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.27.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.28.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.29.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.30.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.31.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.32.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.33.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.34.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.35.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.36.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.37.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.38.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.39.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.40.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.41.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.42.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.43.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.44.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.45.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.46.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.47.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.48.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.49.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.50.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.51.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.52.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.53.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.54.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.55.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.56.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.57.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.58.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.59.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.60.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.61.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.62.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.63.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.64.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.65.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.66.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.67.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.68.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.69.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.70.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.71.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.72.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.73.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.74.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.75.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.76.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.77.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.78.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.79.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.80.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.81.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.82.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.83.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.84.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.85.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.86.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.87.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.88.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.89.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.90.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.91.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.92.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.93.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.94.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.95.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.96.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.97.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.98.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.99.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.100.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.101.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.102.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.103.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.104.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.105.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.106.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.107.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.108.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.109.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.110.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.111.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.112.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.113.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.114.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.115.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.116.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.117.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.118.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.119.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.120.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.121.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.122.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.123.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.124.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.125.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.126.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.127.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.128.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.129.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.130.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.131.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.132.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.133.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.134.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.135.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.136.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.137.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.138.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.139.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.140.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.141.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.142.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.143.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.144.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.145.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.146.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.147.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.148.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.149.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.150.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.151.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.152.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.153.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.154.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.155.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.156.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.157.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.158.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.159.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.160.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.161.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.162.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.163.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.164.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.165.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.166.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.167.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.168.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.169.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.170.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.171.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.172.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.173.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.174.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.175.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.176.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.177.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.178.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.179.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.180.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.181.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.182.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.183.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.184.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.185.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.186.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.187.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.188.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.189.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.190.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.191.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.192.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.193.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.194.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.195.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.196.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.197.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.198.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.199.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.200.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.201.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.202.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.203.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.204.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.205.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.206.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.207.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.208.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.209.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.210.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.211.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.212.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.213.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.214.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.215.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.216.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.217.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.218.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.219.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.220.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.221.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.222.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.223.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.224.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.225.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.226.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.227.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.228.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.229.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.230.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.231.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.232.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.233.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.234.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.235.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.236.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.237.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.238.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.239.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.240.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.241.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.242.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.243.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.244.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.245.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.246.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.247.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.248.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.249.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.250.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.251.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.252.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.253.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.254.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC
38.243.255.0/24 since Dec 2025	AS154395	Datacenter proxy	IP broker Rackdog	Cogent Communications, LLC

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
38.0.0.0/8	16,777,216	COGENT-A	Cogent Communications, LLC (COGC) · US	Direct Allocation	Apr 16, 1991	abuse@cogentco.com
└ 38.243.0.0/16	65,536	RACKDOG-CGNT-NET-117	RCN (C11605363) · US	Reassigned	May 27, 2026	abuse@cogentco.com via COGENT-A

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

IPv4 market

Holder

Holder in the market →

Organization: Cogent Communications, LLC
Handle: COGC
Range: 38.0.0.0/8
Registration type: Direct Allocation
Record created: Apr 16, 1991
Legacy: yes

Origin network

AS398465

Name: Rackdog, LLC
Type: Hosting
Registered: Jun 15, 2020
Domain: rackdog.com
Website: rackdog.com
Spamhaus ASN-DROP: not listed

38.243.0.0/16

Path

Operators, sellers and brokers

IP brokers

Owners leasing their own space

Lineage

From the registry to its use

Announcements

Covering announcements

More-specifics by size

Announcements inside

Registrations in this block

Network & registry

Holder

AS398465

Covering aggregate above, the prefix's own history below

Routing history

Route objects on the exact prefix

Registration for this announcement

Abuse contact