199.13.0.0/16

Currently announced by AS22773 Cox Communications, in the routed prefix 199.13.0.0/16.

Current ASN: AS22773; Cox Communications
Routed prefix: 199.13.0.0/16; Most specific route covering this prefix
ASNs over time: 1; 1 announcement record
RIR allocation: ARIN; United States · 199.12.0.0/15

Routing data · Nov 2, 2026, 00:27 UTC

ASN historyEvery routed prefix covering 199.13.0.0/16

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
199.13.0.0/16	AS22773	Cox Communications	United States	Before monitoring	2026-11-02 00:27	Announcing

More specific routes15 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
199.13.0.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-11-02 00:27	Announcing
199.13.32.0/19	AS20001	Charter Communications (20001)	United States	Before monitoring	2026-11-02 00:27	Announcing
199.13.64.0/19	AS20001	Charter Communications (20001)	United States	Before monitoring	2026-11-02 00:27	Announcing
199.13.96.0/19	AS20001	Charter Communications (20001)	United States	Before monitoring	2026-11-02 00:27	Announcing
199.13.160.0/19	AS20001	Charter Communications (20001)	United States	Before monitoring	2026-11-02 00:27	Announcing
199.13.160.0/20	AS11404	Wave Division Holdings	United States	Before monitoring	2026-11-02 00:27	Announcing
199.13.176.0/20	AS11404	Wave Division Holdings	United States	Before monitoring	2026-11-02 00:27	Announcing
199.13.192.0/19	AS20001	Charter Communications (20001)	United States	Before monitoring	2026-11-02 00:27	Announcing
199.13.192.0/20	AS11404	Wave Division Holdings	United States	Before monitoring	2026-11-02 00:27	Announcing
199.13.208.0/20	AS11404	Wave Division Holdings	United States	Before monitoring	2026-11-02 00:27	Announcing
199.13.224.0/19	AS20001	Charter Communications (20001)	United States	Before monitoring	2026-11-02 00:27	Announcing
199.13.224.0/20	AS11404	Wave Division Holdings	United States	Before monitoring	2026-11-02 00:27	Announcing
199.13.240.0/20	AS11404	Wave Division Holdings	United States	Before monitoring	2026-11-02 00:27	Announcing
199.13.0.0/19	AS3491	PCCW Global	Hong Kong SAR China	Before monitoring	2026-10-30 00:19	Stopped
199.13.128.0/19	AS3491	PCCW Global	Hong Kong SAR China	Before monitoring	2026-10-30 00:19	Stopped

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: 199.12.0.0/15
Country: United States
Allocation date: 1993-09-24
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.