186.233.120.0/21

Currently announced by AS263075 TV Cabo de Santo Anastacio, in the routed prefix 186.233.120.0/21.

Current ASN: AS263075; TV Cabo de Santo Anastacio
Routed prefix: 186.233.120.0/21; Most specific route covering this prefix
ASNs over time: 2; 2 announcement records
RIR allocation: LACNIC; Brazil · 186.233.120.0/21

Routing data · Nov 1, 2026, 22:23 UTC

ASN historyEvery routed prefix covering 186.233.120.0/21

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
186.233.120.0/21	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.120.0/21	AS270463	ASCES NET TELECOMUNICACAO LTDA ME	Brazil	2026-10-29 06:23	2026-10-29 08:25	Stopped

More specific routes20 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
186.233.120.0/22	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.120.0/23	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.120.0/24	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.121.0/24	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.122.0/23	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.122.0/24	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.123.0/24	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.124.0/22	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.124.0/23	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.124.0/24	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.125.0/24	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.126.0/23	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.126.0/24	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.127.0/24	AS263075	TV Cabo de Santo Anastacio	Brazil	Before monitoring	2026-11-01 22:23	Announcing
186.233.120.0/22	AS270463	ASCES NET TELECOMUNICACAO LTDA ME	Brazil	2026-10-29 06:23	2026-10-29 08:25	Stopped
186.233.120.0/23	AS270463	ASCES NET TELECOMUNICACAO LTDA ME	Brazil	2026-10-29 06:23	2026-10-29 08:25	Stopped
186.233.122.0/23	AS270463	ASCES NET TELECOMUNICACAO LTDA ME	Brazil	2026-10-29 06:23	2026-10-29 08:25	Stopped
186.233.124.0/22	AS270463	ASCES NET TELECOMUNICACAO LTDA ME	Brazil	2026-10-29 06:23	2026-10-29 08:25	Stopped
186.233.124.0/23	AS270463	ASCES NET TELECOMUNICACAO LTDA ME	Brazil	2026-10-29 06:23	2026-10-29 08:25	Stopped
186.233.126.0/23	AS270463	ASCES NET TELECOMUNICACAO LTDA ME	Brazil	2026-10-29 06:23	2026-10-29 08:25	Stopped

Change logAll changes

Detected (UTC)	Prefix	Change	ASN	Name	Previous ASN	Country
2026-10-29 06:23	186.233.120.0/21	Origin addedNo longer announced	AS270463	ASCES NET TELECOMUNICACAO LTDA ME	AS263075	Brazil

Look up another address

RIR allocation record

Registry: LACNIC
Allocated block: 186.233.120.0/21
Country: Brazil
Allocation date: 2012-03-28
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.