Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS28571

Announcement observedUnknown RIR

AS28571 - UNIVERSIDADE DE SAO PAULO · AS28571

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/18/2026, 09:21:51Snapshot expired

View network topology RDAP registration

ASN: AS28571
Registration country: Registration country pending sync
Name: AS28571 - UNIVERSIDADE DE SAO PAULO
Abbreviation: AS28571
Registration date: Not recorded
Status: Announcement observed
RIR: Not recorded

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
143.107.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
143.107.14.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 16:00:00	✓	×	Currently valid
143.107.154.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
143.107.178.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 16:00:00	✓	×	Currently valid
143.107.248.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
143.107.253.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
143.107.254.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
143.107.27.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Historical record
143.107.3.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
143.107.44.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 16:00:00	✓	×	Currently valid
143.107.64.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/6/2026, 00:00:00	✓	×	Historical record
143.107.8.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 16:00:00	✓	×	Currently valid
143.107.84.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Historical record
143.107.86.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Historical record
143.107.88.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Historical record
177.90.128.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
177.90.32.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/21/2026, 16:00:00	✓	×	Historical record
177.90.64.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.136.0.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.136.49.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.136.52.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.136.54.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.160.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.174.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/7/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.180.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.182.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.184.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.192.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.212.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.234.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.236.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.237.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.238.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.239.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.244.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.248.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.249.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.250.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.252.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.254.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.48.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.144.60.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 16:00:00	✓	×	Currently valid
200.144.72.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.17.16.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.18.106.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.18.108.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.18.53.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid
200.9.95.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/18/2026, 00:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: AS28571 - UNIVERSIDADE DE SAO PAULO
RIR: Not recorded
Registration country: Registration country pending sync
Registration date: Not recorded
Abuse contact: Not recorded

Snapshot trend

10/18/2026, 09:21:5143 v410 v610 Upstream · 19 Uncertain

10/2/2026, 02:14:5147 v49 v69 Upstream · 17 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing