Autonomous system
AS7280 YAHOO-FC
Unclassified ARIN
Summary
Yahoo
content legacy
YAHOO-FC is one of the many AS numbers operated by Yahoo (registered variously to Yahoo Holdings and Oath Holdings, depending on which registry record you read). It is a small piece of Yahoo's international serving infrastructure.
What it's used for
- Edge and point-of-presence infrastructure for Yahoo's web properties, rather than a customer-facing network. Reverse DNS across its space resolves under
yahoo.com, with router names pointing at Yahoo facilities. - It is a content network: the addresses serve Yahoo's own systems, so they map to a company's servers rather than to end users.
Notable
- The footprint is deliberately scattered rather than large — a few thousand IPv4 addresses spread across the United States, Brazil, Korea and other Asia-Pacific locations, with IPv6
/48s in each region. That is the shape of distributed edge presence, not a data-centre block. - Yahoo runs a whole family of AS numbers; this one sits inside the wider
AS-YAHOOgrouping and handles only part of the picture.
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 |
|---|---|---|
| AS10310 | Yahoo Holdings Inc. | 871 |
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
IPv4 5 prefixes · 2.30K addresses IPv6 6 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 11 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS7280- Registry name
- YAHOO-FC
- Registrant
- Yahoo Holdings Inc.
- Abuse contact
- rir-abuse@yahooinc.com
- Registered
- 1996-11-01
- Last changed
- 2019-05-01
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 18 with no ROA
- ROAs
- 0 authorising AS7280
- ASPA
- no ASPA record
- IRR
- 89% registered · 16 of 18 announcements 2 other origin
- Route objects
- 24 naming AS7280
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 1,784 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