AS43428 YAHOO-ULS Yahoo-UK Limited
🇬🇧Org handle: ORG-YE1-RIPE
RIPE NCCallocated
Announced Prefixes (BGP)
4total
3 IPv41 IPv6
IPv4 Addresses
Allocated (RIR)0
Announced (BGP)768
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)1.2×10²⁴
Announced Prefixes
(BGP)4|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | Other IRR | 2026-10-09 | |
| No ROA | Other IRR | 2026-10-09 | |
| No ROA | Other IRR | 2026-10-09 | |
| No ROA | Other IRR | 2026-10-09 |
All 4 announced prefixes of AS43428 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS43428 hands its own prefixes to: transit providers, or peers at an exchange.
- AS10310Yahoo Holdings4
ASPA
No ASPA
Abuse Contact
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- ASPA explainedWhy AS43428 should publish an ASPA object
- IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/43428Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/43428" | jq