217.217.36.0/22 - BT UK British Telecommunications Limited (AS2856)
CIDR
217.217.36.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇬🇧 United Kingdom
City
Liverpool
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 |
|---|---|---|---|---|
| 217.217.36.0/22 | AS2856 BT-UK-AS British Telecommunications Limited | Valid | Other IRRRIPE | 2026-10-11 |
RPKI ROAs
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS9304 | Other IRR | MAINT-AS834 | 2025-07-16 |
| AS2856 | Other IRR | MAINT-AS834 | 2025-07-16 |
| AS399955 | Other IRR | MAINT-AS834 | 2026-04-30 |
| AS6079 | Other IRR | MAINT-AS834 | 2026-04-27 |
| AS399955 | RIPE | netutils-mnt | 2026-04-30 |
| AS6079 | RIPE | netutils-mnt | 2026-04-24 |
| AS2856 | RIPE | netutils-mnt | 2025-07-15 |
| AS9304 | RIPE | netutils-mnt | 2025-07-15 |
Transfer History
Registry transfers of 217.217.36.0/22, blocks inside it, or blocks containing it.
- 217.216.0.0/15Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 217.216.0.0/15 | VODAFONE ONO, S.A. | TerraTransit AG | Transfer |
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 transfer marketTransfers published by all five RIRs
API
Open https://api.ipctl.io/v1/prefix/217.217.36.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/217.217.36.0/22" | jq
External Links