AS12519 FASTNETUK FastNet International Ltd
🇬🇧Org handle: ORG-FIL1-RIPE
RIPE NCCallocated
Announced Prefixes (BGP)
5total
4 IPv41 IPv6
IPv4 Addresses
Allocated (RIR)29,696
Announced (BGP)28,672
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)7.9×10²⁸
Announced Prefixes
(BGP)5|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | RIPE | 2026-10-11 | |
| Valid | RIPE | 2026-10-11 | |
| Valid | RIPE | 2026-10-11 | |
| Valid | RIPE | 2026-10-11 | |
| Valid | RIPE | 2026-10-11 |
Allocated Prefixes
(RIR)6Prefix | Country | RIR | Status |
|---|---|---|---|
| 81.31.64.0/20 | 🇬🇧 GB | RIPENCC | allocated |
| 82.148.32.0/19 | 🇬🇧 GB | RIPENCC | allocated |
| 87.252.32.0/19 | 🇬🇧 GB | RIPENCC | allocated |
| 185.10.100.0/22 | 🇬🇧 GB | RIPENCC | allocated |
| 212.42.160.0/19 | 🇬🇧 GB | RIPENCC | allocated |
| 2a02:13a0::/32 | 🇬🇧 GB | RIPENCC | allocated |
All 5 announced prefixes of AS12519 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS12519 hands its own prefixes to: transit providers, or peers at an exchange.
- AS2914NTT America5
Downstreams (2)
Networks whose own prefixes AS12519 passes on: usually its customers.
Other adjacent networks (1)
Adjacent to AS12519 in the transit part of AS paths: peers, providers or customers.
- AS1299TWELVE99 Arelion Sweden AB3
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 AS12519 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/12519Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/12519" | jq