Autonomous system
AS53045 UAUBR PROVEDOR DE ACESSO A INTERNET LTDA
Unclassified LACNIC
Summary
UAUBR
isp residential brazil regional
UAUBR PROVEDOR DE ACESSO A INTERNET LTDA is held by UAUBR.
What it's used for
- The address space carries residential and business internet access, as indicated by the registrant name "PROVEDOR DE ACESSO A INTERNET" (Internet Access Provider) and the PeeringDB classification as a Cable/DSL/ISP.
- The AS announces 4096 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, with 20 observed neighbours. This ratio of address space to peering partners is consistent with a regional access network rather than a transit provider.
- Traffic from this AS consists of subscriber eyeballs and local business endpoints served by a regional Brazilian ISP.
Notable
- All three announced IPv4 prefixes share the same registrant, UAUBR PROVEDOR DE ACESSO A INTERNET LTDA, with netnames 172723, 256259, and 294112.
- The address inventory is composed of three distinct IPv4 blocks: 177.85.144.0/21, 138.121.232.0/22, and 170.79.4.0/22, alongside a single /32 IPv6 prefix.
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 3 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) São Paulo | São Paulo, Brazil | 187.16.210.223 |
| IX.br (PTT.br) Fortaleza | Fortaleza, Brazil | 45.68.74.15 |
| IX.br (PTT.br) Aracaju | Aracaju, Brazil | 200.219.130.19 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 · 4.10K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 4 |
Registry
Allocation record
- Registry
- LACNIC
- Handle
53045- Registry name
- ASN53045
- Registrant
- UAUBR PROVEDOR DE ACESSO A INTERNET LTDA
- Abuse contact
- Ericson Miralha do Nascimento
- Registered
- 2011-10-10
- Last changed
- 2022-07-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 20 with no ROA
- ROAs
- 0 authorising AS53045
- ASPA
- no ASPA record
- IRR
- 100% registered · 20 of 20 announcements
- Route objects
- 36 naming AS53045
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: 440 networks and 1,773 prefixes, as published 2026-10-13. 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