asn.dev

Autonomous system

AS23880 YAHOO-AEA Internet content provider

Unclassified APNIC

IPv4 addresses 256 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Yahoo

United States of America · AI-generated

business content corporate

The AS handle YAHOO-AEA is held by Yahoo.

What it's used for

  • The address space carries internal corporate infrastructure, evidenced by the netname CH-YAHOO and reverse DNS entries pointing to unknown.yahoo.com.
  • The AS announces 256 IPv4 addresses and 1 IPv6 prefix with only 1 observed neighbour, indicating a small, isolated internal estate rather than a transit or access network.

Notable

  • The registrant Yahoo Europe Operations Department; Network Abuse aligns with the announcer, confirming the space is operated directly by the organization.
  • The inventory consists of a single /24 IPv4 block and one /48 IPv6 prefix, representing a finely subdivided internal corporate estate.

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
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC97

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, 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 · 256 addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS23880
Registry name
Yahoo-AEA
Registrant
Yahoo Inc.
Abuse contact
rir-admin@yahooinc.com
Registered
2008-09-04
Last changed
2021-01-11
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS23880
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
14 naming AS23880

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 1,783 prefixes, as published 2026-10-17. 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