Autonomous system
AS61721 PETROLEO BRASILEIRO S.A. - PETROBRAS
Unclassified ARIN Enterprise
Summary
Petrobras
business energy corporate
AS61721 is operated by Petrobras (Petróleo Brasileiro S.A.).
What it's used for
- The address space is registered under the netname
233834with registrantPETROLEO BRASILEIRO S.A. - PETROBRAS, indicating a dedicated corporate allocation. - The AS announces 256 IPv4 addresses across 1 prefix and 1 IPv6 prefix, with only 1 observed neighbour, which characterizes it as a small, isolated internal corporate estate rather than a transit or access network.
- Traffic from this AS consists of internal corporate communications for a major oil and gas exploration and production company, supporting office workers, operational systems, and branch backhaul.
Notable
- The RDAP registrant matches the AS holder, confirming the space is owned and operated by Petrobras.
- The inventory consists of a single /24 IPv4 block and a single /48 IPv6 block, representing a minimal footprint typical of a large enterprise maintaining a specific network segment.
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
1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS23074 | PETROLEO BRASILEIRO S.A. - PETROBRAS | 93 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-24, 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 · 256 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
61721- Registry name
- ASN61721
- Registrant
- PETROLEO BRASILEIRO S.A. - PETROBRAS
- Abuse contact
- PETROLEO BRASILEIRO S.A.
- Registered
- 2014-07-31
- Last changed
- 2019-07-31
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- PETROLEO BRASILEIRO AS61721
- Also known as
- Petrobras
- Network type
- Enterprise
- Scope
- Global
- Traffic ratio
- Balanced
- Peering policy
- Restrictive
- Website
- http://www.petrobras.com.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 · 2 valid, 0 with no ROA
- ROAs
- 2 authorising AS61721
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 2 naming AS61721
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: 443 networks and 1,779 prefixes, as published 2026-10-25. 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