201.7.144.0/20

Currently announced by AS28627 EMBRAER - Empresa Brasileira de Aeronautica SA, in the routed prefix 201.7.144.0/20.

Current ASN: AS28627; EMBRAER - Empresa Brasileira de Aeronautica SA
Routed prefix: 201.7.144.0/20; Most specific route covering this prefix
ASNs over time: 1; 1 announcement record
RIR allocation: LACNIC; Brazil · 201.7.144.0/20

Routing data · Nov 10, 2026, 12:46 UTC

ASN historyEvery routed prefix covering 201.7.144.0/20

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
201.7.144.0/20	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	Announcing

More specific routes14 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
201.7.144.0/24	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	Announcing
201.7.145.0/24	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	Announcing
201.7.146.0/24	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	Announcing
201.7.148.0/24	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	Announcing
201.7.149.0/24	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	Announcing
201.7.150.0/24	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	Announcing
201.7.151.0/24	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	Announcing
201.7.152.0/24	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	Announcing
201.7.153.0/24	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	Announcing
201.7.154.0/24	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	Announcing
201.7.155.0/24	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	Announcing
201.7.156.0/24	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	Announcing
201.7.158.0/24	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	Announcing
201.7.159.0/24	AS28627	EMBRAER - Empresa Brasileira de Aeronautica SA	Brazil	Before monitoring	2026-11-10 12:46	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: LACNIC
Allocated block: 201.7.144.0/20
Country: Brazil
Allocation date: 2006-01-16
Status: assigned

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.