217.31.0.0/20
🇬🇧CIDR
217.31.0.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇬🇧 United Kingdom
City
London
RIR
RIPENCC
Status
allocated
Allocated
10/26/2000
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not currently announced in BGP. See covering prefix below. | ||||
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 217.31.10.0/23 | AS2856BT-UK-AS British Telecommunications PLC | Valid | — | 5/31/2026 |
| 217.31.1.0/24 | AS1813DXC-AS1810-AS1815 - DXC US Latin America Corporation | Valid | — | 5/31/2026 |
| 217.31.9.0/24 | AS2856BT-UK-AS British Telecommunications PLC | Valid | — | 5/31/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 217.31.0.0/20 | AS15917 | /20 | ripe |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS15917 | RIPE | CSCUK-MNT2 | 4/13/2023 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 217.31.10.0/23 | AS2856 | 🇬🇧GB | assigned |
| 217.31.9.0/24 | AS2856 | 🇬🇧GB | assigned |
| 217.31.0.0/24 | 🇬🇧GB | assigned | |
| 217.31.1.0/24 | AS1813 | 🇬🇧GB | assigned |
| 217.31.4.0/24 | 🇬🇧GB | assigned | |
| 217.31.3.0/24 | 🇬🇧GB | assigned | |
| 217.31.5.0/24 | 🇬🇧GB | assigned | |
| 217.31.14.0/24 | 🇱🇺LU | assigned | |
| 217.31.6.0/25 | 🇬🇧GB | assigned | |
| 217.31.8.0/25 | 🇬🇧GB | assigned |
Origin ASN
AS15917
Geolocation
Abuse Contact
API
Open https://api.ipctl.io/v1/prefix/217.31.0.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/217.31.0.0/20" | jq
External Links