Autonomous system
AS271755 AS271755 - UNIVERSIDADE DE SAO PAULO
Unclassified LACNIC
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS1251 | FUNDACAO DE AMPARO A PESQUISA DO ESTADO SAO PAULO | 64 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-01, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 8.19K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 1 |
Registry
Allocation record
- Registry
- LACNIC
- Handle
271755- Registry name
- ASN271755
- Registrant
- UNIVERSIDADE DE SAO PAULO
- Abuse contact
- CSIRT USP / Grupo de Segurança em TI
- Registered
- 2021-05-20
- Last changed
- 2024-02-27
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- UNIVERSIDADE DE SAO PAULO - AS271755
- Also known as
- USP
- Scope
- Regional
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- Website
- https://www.usp.br
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1 valid, 0 with no ROA
- ROAs
- 1 authorising AS271755
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 1 announcements
- Route objects
- 0 naming AS271755
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 449 networks and 1,846 prefixes, as published 2026-11-02. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere