asn.dev

Autonomous system

AS28122 YAHOO DO BRASIL INTERNET LTDA.

Hosting APNIC

IPv4 addresses 512 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Yahoo do Brasil

Brazil · AI-generated

business corporate brazil

The AS handle is YAHOO DO BRASIL INTERNET LTDA. and the holder is Yahoo do Brasil Internet Ltda.

What it's used for

  • The address space carries corporate infrastructure, evidenced by reverse DNS entries pointing to unknown.yahoo.com.
  • The inventory consists of 512 IPv4 addresses and 1 IPv6 prefix, with a single observed neighbour, indicating an internal corporate estate rather than a transit or access network.

Notable

  • The registrant YAHOO DO BRASIL INTERNET LTDA. matches the AS holder name exactly.
  • The address inventory is a single /23 block (200.152.162.0/23) and one /48 IPv6 prefix, representing a compact, self-contained corporate allocation.

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

Full topology · Graph

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.

ASNetworkPaths seen
AS10310Yahoo Holdings Inc.93

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 512 addresses IPv6 1 prefixes

CountryNamePrefixes
BRBrazil2

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
28122
Registry name
ASN28122
Registrant
YAHOO DO BRASIL INTERNET LTDA.
Abuse contact
Atendimento ao Usuário
Registered
2008-12-09
Last changed
2013-03-06
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS28122
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
8 naming AS28122

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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 1,784 prefixes, as published 2026-10-19. 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

Cross-check