72.200.64.0/18

Currently announced by AS22773 Cox Communications, in the routed prefix 72.200.64.0/18.

Current ASN: AS22773; Cox Communications
Routed prefix: 72.200.64.0/18; 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 72.200.64.0/18

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
72.200.64.0/18	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 routes33 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
72.200.64.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.65.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.66.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.68.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.71.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.72.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.74.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.75.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.76.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.78.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.80.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.82.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.83.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.84.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.87.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.88.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.90.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.92.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.93.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.96.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.100.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.101.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.104.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.106.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.109.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.112.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.114.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.116.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.118.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.120.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.122.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.124.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing
72.200.126.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 08:23	Announcing

Change logAll changes

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

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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.