Autonomous system
AS28631 Banrisul - Banco do Estado do Rio Grande do Sul
Unclassified LACNIC
Summary
Banrisul
bank enterprise brazil corporate
AS28631 is operated by Banrisul - Banco do Estado do Rio Grande do Sul.
What it's used for
- The address space is registered under the netname
73235for the bank itself, indicating a corporate internal network rather than a public service provider. - The AS announces a single IPv4 prefix,
201.55.240.0/20(4096 addresses), and one IPv6 prefix,2801:80:280::/44. - With 23 observed neighbours, the ratio of address space to peering partners suggests a standard enterprise connectivity profile, likely connecting to multiple upstreams for redundancy.
Notable
- The RDAP registrant matches the AS holder exactly, confirming direct ownership of the address space.
- Banrisul is the largest bank in Southern Brazil, operating primarily in the state of Rio Grande do Sul.
- The inventory consists of a single contiguous IPv4 block, typical of a corporate estate managed for internal site segmentation.
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 | 187.16.208.142 |
| IX.br (PTT.br) Porto Alegre | Porto Alegre, Brazil | 177.52.38.219 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, 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 · 4.10K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 2 |
Registry
Allocation record
- Registry
- LACNIC
- Handle
28631- Registry name
- ASN28631
- Registrant
- Banrisul - Banco do Estado do Rio Grande do Sul
- Abuse contact
- dominios@banrisul.com.br
- Registered
- 2006-02-06
- Last changed
- 2016-12-01
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 19 with no ROA
- ROAs
- 0 authorising AS28631
- ASPA
- no ASPA record
- IRR
- 95% registered · 18 of 19 announcements
- Route objects
- 20 naming AS28631
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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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