Autonomous system
AS10229 YAHOO-TW1 Yahoo Inc.
Hosting APNIC
Summary
Yahoo Taiwan
hosting content cdn
YAHOO-TW1 is Yahoo Inc.'s Taiwanese network. Taiwan is one of the few markets where Yahoo remained a dominant consumer portal long after it faded elsewhere, and this AS is the infrastructure that served it.
What it's used for
- Serving Yahoo's own content and services to users in Taiwan and the surrounding region: the portal, mail, news and auctions properties, front-ended by load balancers inside Yahoo-operated space rather than a third-party CDN.
- The announced space is Yahoo's own:
119.160.240.0/20,202.43.192.0/21,203.84.192.0/21and203.84.200.0/21, several /21s out of124.108.96.0/19, plus IPv6 from2406:2000::/32(2406:2000:fc::/46and a pair of /48s).
Notable
- Content hosting, and the reverse DNS spells out the machine roles. Sampled PTRs resolve to names like
vl233.lbf1-2-prd.tw1.yahoo.com,vl-137.slb3-1-flk.tw1.yahoo.comandvl-121.slb5-143-pda.tw1.yahoo.com.slbandlbfare server load balancers,prdis production, andtw1is the Taiwan site designator. Load-balancer VLAN interfaces are what sits in front of a server farm. Nothing in the sample looks like subscriber access: nodsl, nopool, nodhcp, no CGN. - Only 1 observed BGP neighbour, which is decisive against any carrier or transit reading. A content network is a destination, not a path: it buys transit, peers where it can, and sells connectivity to no one.
- A backbone router surfaces in the sample too,
te-9-1.bas1-1-prd.tw1.yahoo.com, which confirms this is first-party infrastructure rather than leased space carrying someone else's traffic.
Interesting
- Yahoo has cycled through owners (Verizon, then Apollo Global Management) while the AS handle and the
tw1site naming stayed put, a reminder that network identifiers outlive corporate ones.
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 |
|---|---|---|
| AS10310 | Yahoo Holdings Inc. | 7 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, 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 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| TW | Taiwan, Province of China | 1 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS10229- Registry name
- YAHOO-TW1
- Registrant
- Yahoo Inc.
- Abuse contact
- rir-admin@yahooinc.com
- Registered
- 2008-09-04
- Last changed
- 2024-05-03
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 1 authorising AS10229
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 75 naming AS10229
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: 448 networks and 1,851 prefixes, as published 2026-10-29. 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