51.146.128.0/22 - BT UK British Telecommunications Limited (AS2856)
CIDR
51.146.128.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇬🇧 United Kingdom
City
London
RIR
RIPE
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 51.146.128.0/22 | AS2856 BT-UK-AS British Telecommunications Limited | Valid | Other IRRRIPE | 2026-10-11 |
RPKI ROAs
Related Prefixes
Geolocation
Country🇬🇧United KingdomGB
CityLondon
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 transfer marketTransfers published by all five RIRs
API
Open https://api.ipctl.io/v1/prefix/51.146.128.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/51.146.128.0/22" | jq
External Links