AS203258 UCNS-AS UCNS Limited
🇬🇧Org handle: ORG-UL52-RIPE
RIPE NCCallocated
Announced Prefixes (BGP)
5total
5 IPv40 IPv6
IPv4 Addresses
Allocated (RIR)3,328
Announced (BGP)1,280
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
10
Prefix Limit (IPv6)
5
Country
🇬🇧 GBRIR
RIPE NCCStatus
allocated
Allocated
2016-03-08
Announced Prefixes
(BGP)5|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | RIPE | 2026-10-11 | |
| Valid | RIPE | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 |
Allocated Prefixes
(RIR)6Prefix | Country | RIR | Status |
|---|---|---|---|
| 178.21.32.0/21 | 🇬🇧 GB | RIPENCC | allocated |
| 178.21.32.0/24 | 🇬🇧 GB | RIPE | assigned |
| 178.21.33.0/24 | 🇬🇧 GB | RIPE | assigned |
| 178.21.34.0/24 | 🇬🇧 GB | RIPE | assigned |
| 178.21.38.0/24 | 🇬🇧 GB | RIPE | assigned |
| 178.21.39.0/24 | 🇬🇧 GB | RIPE | assigned |
All 5 announced prefixes of AS203258 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS203258 hands its own prefixes to: transit providers, or peers at an exchange.
- AS196881LIBERTY Izone5
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 AS203258 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/203258Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/203258" | jq