51.146.56.0/22 - BT UK British Telecommunications Limited (AS2856)
CIDR
51.146.56.0/22
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:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 51.146.56.0/22 | AS2856 BT-UK-AS British Telecommunications Limited | No ROA | - | 2026-10-11 |
More-Specific Announcements
4 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 51.146.56.0/24 | AS402722 ARCTCLOUD - Arct | Valid | - | 2026-10-11 |
| 51.146.57.0/24 | AS5511 Opentransit Orange S.A. | Valid | - | 2026-10-11 |
| 51.146.58.0/24 | AS401783 TOKALA-COMMUNICATIONS - TOKALA COMMUNICATIONS INC. | Valid | - | 2026-10-11 |
| 51.146.59.0/24 | AS5511 Opentransit Orange S.A. | Valid | - | 2026-10-11 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 51.146.56.0/24 | AS402722 | 🇺🇸US | assigned |
| 51.146.57.0/24 | AS5511 | 🇪🇺EU | assigned |
| 51.146.58.0/24 | AS401783 | 🇪🇺EU | assigned |
| 51.146.59.0/24 | AS5511 | 🇺🇸US | assigned |
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/51.146.56.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/51.146.56.0/22" | jq
External Links