Autonomous system
AS53187 UNIVERSIDADE ESTADUAL DE CAMPINAS
Unclassified ARIN
Summary
Unicamp
education research university
UNIVERSIDADE ESTADUAL DE CAMPINAS is the autonomous system for Unicamp, a public research university in Campinas, São Paulo, Brazil.
What it's used for
- The address space carries university infrastructure, with reverse DNS entries pointing to specific departments and facilities such as
net-A.ibi.unicamp.br,bc-default.fec.unicamp.br,wifi-143-106-191-254.ft.unicamp.br, andgw-vr-dga-dmz.dga.unicamp.br. - The AS announces 102400 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, while maintaining 28 observed neighbours, a ratio consistent with a large institutional network rather than a transit provider.
- Traffic from this AS represents the digital footprint of a major research institution, including academic staff, students, and research lab endpoints.
Notable
- All registrants for the announced prefixes are listed as UNIVERSIDADE ESTADUAL DE CAMPINAS, matching the AS holder.
- The address inventory consists of three distinct IPv4 blocks: 143.106.0.0/16, 177.220.0.0/17, and 177.8.96.0/20, alongside the IPv6 prefix 2801:8a::/32.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) São Paulo | São Paulo, Brazil | 187.16.211.204 |
| IX.br (PTT.br) Campinas | Campinas, Brazil | 200.192.108.43 |
Transit providers
5 upstream, 0 downstream and 7 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 102K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
53187- Registry name
- ASN53187
- Registrant
- UNIVERSIDADE ESTADUAL DE CAMPINAS
- Abuse contact
- security@unicamp.br
- Registered
- 2010-08-24
- Last changed
- 2013-04-10
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 4 authorising AS53187
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 4 naming AS53187
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: 442 networks and 1,783 prefixes, as published 2026-10-17. 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