AS203851 as_csd001 CSD Network Services Ltd
🇬🇧Org handle: ORG-CL296-RIPE
RIPE NCCallocated
Announced Prefixes (BGP)
6total
6 IPv40 IPv6
IPv4 Addresses
Allocated (RIR)1,280
Announced (BGP)1,536
IPv6 Addresses
Allocated (RIR)6.3×10²⁹
Announced (BGP)0
Announced Prefixes
(BGP)6|
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 | |
185.154.51.0/24MOAS | Invalid | - | 2026-10-11 |
Allocated Prefixes
(RIR)3Prefix | Country | RIR | Status |
|---|---|---|---|
| 185.87.212.0/22 | 🇬🇧 GB | RIPENCC | allocated |
| 185.87.212.0/24 | 🇬🇧 GB | RIPE | assigned |
| 2a05:c540::/29 | 🇬🇧 GB | RIPENCC | allocated |
All 6 announced prefixes of AS203851 →
BGP Neighbours
(seen in AS paths)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 AS203851 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/203851Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/203851" | jq