186.235.40.0/21

Currently announced by AS270814 ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A., in the routed prefix 186.235.40.0/21.

Current ASN: AS270814; ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.
Routed prefix: 186.235.40.0/21; Most specific route covering this prefix
ASNs over time: 1; 2 announcement records
RIR allocation: LACNIC; Brazil · 186.235.32.0/20

Routing data · Nov 2, 2026, 00:27 UTC

ASN historyEvery routed prefix covering 186.235.40.0/21

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
186.235.40.0/21	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	2026-10-28 02:20	2026-11-02 00:27	Announcing
186.235.32.0/20	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing

More specific routes14 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
186.235.40.0/22	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing
186.235.40.0/23	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing
186.235.40.0/24	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing
186.235.41.0/24	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing
186.235.42.0/23	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing
186.235.42.0/24	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing
186.235.43.0/24	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing
186.235.44.0/22	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing
186.235.44.0/23	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing
186.235.44.0/24	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing
186.235.45.0/24	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing
186.235.46.0/23	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing
186.235.46.0/24	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing
186.235.47.0/24	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	Brazil	Before monitoring	2026-11-02 00:27	Announcing

Change logAll changes

Detected (UTC)	Prefix	Change	ASN	Name	Previous ASN	Country
2026-10-28 02:20	186.235.40.0/21	New announcement	AS270814	ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES S.A.	—	Brazil

Look up another address

RIR allocation record

Registry: LACNIC
Allocated block: 186.235.32.0/20
Country: Brazil
Allocation date: 2010-09-03
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.