Autonomous system
AS11993 BANCO DO BRASIL S.A.
Unclassified RIPE
Summary
Banco do Brasil S.A.
enterprise legacy
AS11993 is held by Banco do Brasil S.A., the state-controlled Brazilian bank. This is a corporate network belonging to a single very large enterprise, not a service provider.
What it's used for
- Bank infrastructure at national scale: RIS observes 29 IPv4 prefixes carrying about 68,000 addresses, plus four IPv6 prefixes under
2801:8e::, against only seven neighbours. The combination matters. Tens of thousands of addresses with a single-digit neighbour count is an enterprise that buys transit from a few carriers, never a carrier itself. - The bulk of the space is one contiguous legacy block,
170.66.0.0/16, announced as a/17plus two/18s and then punched through with a long tail of/24s. That deaggregation pattern is what a large organisation does when it needs traffic engineering across data centres, branches and ATM estates, rather than the scattered multi-RIR inventory of a leased-address operator.
Notable
- Sampled reverse DNS resolves to
ns1.labbs.com.br. Labbs is Banco do Brasil's own developer and API platform, so the space carries first-party bank infrastructure, which corroborates the holder rather than complicating it. - The RDAP registrant lookups for these prefixes failed at collection time. That is a missing answer, not a clearance and not a red flag. The registrant question is simply unverified here, and the routing and rDNS carry the identification instead.
Interesting
- The IPv6 footprint is native LACNIC space (
2801:8e::/36and friends), so the bank runs dual-stack rather than sitting on IPv4 alone.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
7 upstream, 0 downstream and 12 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 2026-10-22, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 43 prefixes · 68.35K addresses IPv6 15 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 58 |
Registry
Allocation record
- Registry
- RIPE
- Handle
11993- Registry name
- ASN11993
- Registrant
- BANCO DO BRASIL S.A.
- Abuse contact
- ditec.redes@bb.com.br
- Registered
- 1999-02-23
- Last changed
- 2020-05-13
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 33 valid, 0 with no ROA
- ROAs
- 4 authorising AS11993
- ASPA
- no ASPA record
- IRR
- 100% registered · 33 of 33 announcements
- Route objects
- 4 naming AS11993
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 1,779 prefixes, as published 2026-10-23. 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