178.251.239.0/24 - C4L MAINFRAME & CYBERNETIC SYSTEMS LIMITED (AS25577)
CIDR
178.251.239.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇬🇧 United Kingdom
City
London
RIR
RIPE NCC
Status
allocated
Allocated
2010-06-30
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 178.251.239.0/24 | AS25577 C4L-AS MAINFRAME & CYBERNETIC SYSTEMS LIMITED | No ROA | RIPE | 2026-10-12 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 178.251.239.56/29 | 🇬🇧GB | assigned | |
| 178.251.239.64/28 | 🇬🇧GB | assigned | |
| 178.251.239.80/28 | 🇬🇧GB | assigned | |
| 178.251.239.128/28 | 🇬🇧GB | assigned | |
| 178.251.239.144/28 | 🇬🇧GB | assigned |
Transfer History
Registry transfers of 178.251.239.0/24, blocks inside it, or blocks containing it.
- 178.251.239.0/24Transfer ·
- 178.251.232.0/21Transfer ·
Related Prefixes
Geolocation
Abuse Contact
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the RIPE NCC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/178.251.239.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/178.251.239.0/24" | jq
External Links