72.201.0.0/16

Currently announced by AS22773 Cox Communications, in the routed prefix 72.201.0.0/16.

Current ASN: AS22773; Cox Communications
Routed prefix: 72.201.0.0/16; Most specific route covering this prefix
ASNs over time: 1; 2 announcement records
RIR allocation: ARIN; United States · 72.192.0.0/11

Routing data · Oct 23, 2026, 08:23 UTC

ASN historyEvery routed prefix covering 72.201.0.0/16

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
72.201.0.0/16	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.192.0.0/11	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing

More specific routes127 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
72.201.1.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.2.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.4.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.6.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.8.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.12.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.14.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.16.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.18.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.20.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.22.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.23.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.24.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.25.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.26.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.27.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.28.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.30.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.32.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.38.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.40.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.44.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.46.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.54.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.56.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.57.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.58.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.60.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.62.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.64.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.66.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.67.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.68.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.70.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.72.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.74.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.76.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.80.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.84.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.86.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.88.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.92.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.96.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.100.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.102.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.105.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.106.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.107.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.108.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.109.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.110.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.113.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.114.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.116.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.117.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.118.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.120.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.124.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.126.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.128.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.130.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.131.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.132.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.134.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.136.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.138.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.139.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.140.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.142.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.144.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.145.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.146.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.148.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.152.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.158.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.163.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.164.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.168.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.170.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.172.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.174.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.175.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.176.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.178.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.180.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.181.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.182.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.184.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.187.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.189.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.192.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.194.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.196.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.198.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.200.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.201.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.203.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.204.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.205.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.206.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.208.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.209.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.210.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.211.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.214.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.216.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.217.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.218.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.222.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.224.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.227.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.229.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.230.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.232.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.238.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.240.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.241.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.242.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.244.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.246.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.248.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.249.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.250.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.252.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.255.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.201.190.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 00:24	Stopped
72.201.202.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 00:24	Stopped

Change logAll changes

The routes covering this address have had no origin changes since ASNBase started monitoring.

Look up another address

RIR allocation record

Registry: ARIN
Allocated block: 72.192.0.0/11
Country: United States
Allocation date: 2005-08-03
Status: allocated

From the RIRs’ delegated statistics files. Shows where the addresses are registered, not where they are used.

How monitoring works

Every 2 hours ASNBase takes the bgp.tools global routing table (prefix → origin ASN) and compares it with the previous one. The detected time is the time of that comparison; the actual change can be up to about 2 hours earlier.
Only routes seen by more than 100 bgp.tools peers are listed as changes; routes with less visibility are only kept in the history.
A new announcement counts only if it is still in the next routing table, and a withdrawal only if the prefix is missing from two tables in a row, so short flaps are ignored.
ASNBase has been monitoring since 2026-10-19. “Before monitoring” under “First seen” means the route was already announced when monitoring started; the earlier date is unknown.
Prefixes first seen during the first day of monitoring do not count as new announcements: most of them were simply missing from the table at the moment monitoring started.
Countries and regions follow the ASN’s registration, not the actual location of the IP addresses.