177.184.128.0/20

Currently announced by AS61832 Giga+ Empresas, in the routed prefix 177.184.128.0/20.

Current ASN: AS61832; Giga+ Empresas
Routed prefix: 177.184.128.0/20; Most specific route covering this prefix
ASNs over time: 2; 2 announcement records
RIR allocation: LACNIC; Brazil · 177.184.128.0/20

Routing data · Nov 2, 2026, 02:24 UTC

ASN historyEvery routed prefix covering 177.184.128.0/20

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
177.184.128.0/20	AS61832	Giga+ Empresas	Brazil	Before monitoring	2026-11-02 02:24	Announcing
177.184.128.0/20	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	Stopped

More specific routes28 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
177.184.128.0/21	AS61832	Giga+ Empresas	Brazil	2026-10-27 18:22	2026-11-02 02:24	Announcing
177.184.128.0/23	AS61832	Giga+ Empresas	Brazil	2026-10-27 18:22	2026-11-02 02:24	Announcing
177.184.128.0/24	AS61832	Giga+ Empresas	Brazil	2026-10-27 18:22	2026-11-02 02:24	Announcing
177.184.129.0/24	AS61832	Giga+ Empresas	Brazil	2026-10-27 18:22	2026-11-02 02:24	Announcing
177.184.130.0/23	AS61832	Giga+ Empresas	Brazil	2026-10-27 18:22	2026-11-02 02:24	Announcing
177.184.131.0/24	AS61832	Giga+ Empresas	Brazil	2026-10-27 18:22	2026-11-02 02:24	Announcing
177.184.132.0/23	AS61832	Giga+ Empresas	Brazil	2026-10-27 18:22	2026-11-02 02:24	Announcing
177.184.133.0/24	AS61832	Giga+ Empresas	Brazil	2026-10-27 18:22	2026-11-02 02:24	Announcing
177.184.134.0/23	AS61832	Giga+ Empresas	Brazil	2026-10-27 18:22	2026-11-02 02:24	Announcing
177.184.136.0/21	AS61832	Giga+ Empresas	Brazil	2026-10-27 18:22	2026-11-02 02:24	Announcing
177.184.136.0/23	AS61832	Giga+ Empresas	Brazil	2026-10-27 18:22	2026-11-02 02:24	Announcing
177.184.138.0/23	AS61832	Giga+ Empresas	Brazil	2026-10-27 18:22	2026-11-02 02:24	Announcing
177.184.140.0/23	AS61832	Giga+ Empresas	Brazil	2026-10-27 18:22	2026-11-02 02:24	Announcing
177.184.142.0/23	AS61832	Giga+ Empresas	Brazil	2026-10-27 18:22	2026-11-02 02:24	Announcing
177.184.128.0/21	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	Stopped
177.184.128.0/23	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	Stopped
177.184.128.0/24	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	Stopped
177.184.129.0/24	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	Stopped
177.184.130.0/23	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	Stopped
177.184.131.0/24	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	Stopped
177.184.132.0/23	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	Stopped
177.184.133.0/24	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	Stopped
177.184.134.0/23	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	Stopped
177.184.136.0/21	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	Stopped
177.184.136.0/23	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	Stopped
177.184.138.0/23	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	Stopped
177.184.140.0/23	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	Stopped
177.184.142.0/23	AS28368	SOBRAL TELECOMUNICACOES LTDA	Brazil	Before monitoring	2026-10-27 16:20	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: LACNIC
Allocated block: 177.184.128.0/20
Country: Brazil
Allocation date: 2012-07-24
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.