Autonomous system
AS15201 AS15201 - Universo Online S.A.
Unclassified APNIC
Summary
Universo Online
isp telecom media
No IPv4 at all: two IPv6 blocks and nothing else.
What it's used for
- An IPv6-only announcement from a large Brazilian internet company. Two IPv6 prefixes, no IPv4 prefixes, and one observed BGP neighbour.
Notable
- Zero IPv4 addresses are announced, which is unusual for an AS number first seen in 2000.
- Both announcements are
/48blocks from the same allocation, and they are not adjacent: several blocks separate them. - No IPv4 prefixes exist in the inventory at all, so there is nothing for the registry lookups to describe and nothing to sample in reverse.
- The AS handle is the company's full registered name, spaces and full stops included, rather than an abbreviation.
- A sibling AS number in this same range belongs to the same corporate family and announces seventy IPv4 prefixes with netnames that are bare numbers.
Interesting
- Two
/48blocks from one allocation, announced separately with a gap between them, is a company routing exactly two sites out of an allocation big enough for tens of thousands. The gap says the other blocks exist and are used somewhere that does not route them here. - An AS number carrying only IPv6 is usually an intentional split: v6 experiments or a specific service kept off the main number so a mistake cannot affect the v4 network.
- With no IPv4 space, every tool built around registry lookups and reverse DNS has nothing to say about this network. The routing table is the entire public record.
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 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS7162 | Universo Online S.A. | 62 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-03, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 0 prefixes · 0 addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 2 |
Registry
Allocation record
- Registry
- APNIC
- Handle
15201- Registry name
- ASN15201
- Registrant
- Universo Online S.A.
- Abuse contact
- Security Office
- Registered
- 2000-04-03
- Last changed
- 2018-11-06
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS15201
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 7 naming AS15201
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: 451 networks and 1,853 prefixes, as published 2026-11-04. 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