217.140.0.0/20 - British Telecommunications Limited (AS13205)
CIDR
217.140.0.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇳🇱 The Netherlands
City
Amsterdam
RIR
RIPE NCC
Status
allocated
Allocated
2001-02-07
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 217.140.0.0/20 | AS13205 British Telecommunications Limited | No ROA | RIPE | 2026-10-11 |
More-Specific Announcements
3 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 217.140.12.0/22 | AS13205 British Telecommunications Limited | No ROA | - | 2026-10-11 |
| 217.140.12.0/24 | AS13205 British Telecommunications Limited | No ROA | - | 2026-10-11 |
| 217.140.13.0/24 | AS13205 British Telecommunications Limited | No ROA | - | 2026-10-11 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 217.140.0.0/21 | 🇳🇱NL | assigned | |
| 217.140.8.0/23 | 🇳🇱NL | assigned | |
| 217.140.10.0/24 | 🇳🇱NL | assigned | |
| 217.140.11.0/24 | 🇳🇱NL | assigned | |
| 217.140.12.0/24 | AS13205 | 🇳🇱NL | assigned |
| 217.140.13.0/25 | 🇳🇱NL | assigned | |
| 217.140.13.128/25 | 🇳🇱NL | assigned | |
| 217.140.14.0/23 | 🇳🇱NL | 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/217.140.0.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/217.140.0.0/20" | jq
External Links