213.205.192.0/18 - BT UK British Telecommunications Limited (AS2856)
CIDR
213.205.192.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇬🇧 United Kingdom
City
Martlesham (Martlesham Heath)
RIR
RIPE NCC
Status
allocated
Allocated
2002-11-07
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 213.205.192.0/18 | AS2856 BT-UK-AS British Telecommunications Limited | Valid | RIPE | 2026-10-12 |
More-Specific Announcements
1 more-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 213.205.208.0/20 | AS2856 BT-UK-AS British Telecommunications Limited | Valid | - | 2026-10-12 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 213.205.192.0/18 | AS2856 | /18 | ripe |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS2856 | RIPE | BTNET-INFRA-MNT | 2025-07-14 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 213.205.192.0/19 | 🇬🇧GB | assigned | |
| 213.205.224.0/19 | 🇬🇧GB | assigned |
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/213.205.192.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/213.205.192.0/18" | jq
External Links