AS21077 ISP4BAS Specialist Computer Centres Plc
🇬🇧Org handle: ORG-IA63-RIPE
--------------------
RIPE NCCallocatedASPA Published
Announced Prefixes (BGP)
12total
12 IPv40 IPv6
IPv4 Addresses
Allocated (RIR)8,192
Announced (BGP)8,448
IPv6 Addresses
Allocated (RIR)6.3×10²⁹
Announced (BGP)0
Announced Prefixes
(BGP)12|
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 | |
| 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 |
1-10 of 12
1 / 2
Allocated Prefixes
(RIR)12Prefix | Country | RIR | Status |
|---|---|---|---|
| 80.86.32.0/20 | 🇬🇧 GB | RIPENCC | allocated |
| 185.98.180.0/22 | 🇬🇧 GB | RIPENCC | allocated |
| 185.98.180.0/24 | 🇬🇧 GB | RIPE | assigned |
| 185.98.181.0/24 | 🇬🇧 GB | RIPE | assigned |
| 185.98.182.0/24 | 🇬🇧 GB | RIPE | assigned |
| 185.106.220.0/22 | 🇬🇧 GB | RIPENCC | allocated |
| 185.106.220.0/24 | 🇬🇧 GB | RIPE | assigned |
| 185.106.221.0/24 | 🇬🇧 GB | RIPE | assigned |
| 185.106.222.0/24 | 🇬🇧 GB | RIPE | assigned |
| 185.106.223.0/24 | 🇬🇧 GB | RIPE | assigned |
1-10 of 12
1 / 2
All 12 announced prefixes of AS21077 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS21077 hands its own prefixes to: transit providers, or peers at an exchange.
- AS39545FLUIDATA Fluidone12
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
- How to run an ASPA checkVerify the upstream providers listed above
- 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/21077Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/21077" | jq