51.148.0.0/21
🇬🇧IPv4RIPEassigned RPKI Valid
CIDR
51.148.0.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇬🇧 United Kingdom
City
London
RIR
RIPE
Status
assigned
Allocated
-
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
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 51.148.0.0/16 | AS13037ZEN-AS Zen Internet Ltd | Valid | — | 5/31/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 51.148.0.0/16 | AS13037 | /20 | ripe |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 51.148.6.0/26 | 🇬🇧GB | assigned | |
| 51.148.6.96/28 | 🇬🇧GB | assigned | |
| 51.148.4.160/29 | 🇬🇧GB | assigned | |
| 51.148.4.152/29 | 🇬🇧GB | assigned | |
| 51.148.1.88/29 | 🇬🇧GB | assigned | |
| 51.148.4.200/29 | 🇬🇧GB | assigned | |
| 51.148.3.176/29 | 🇬🇧GB | assigned | |
| 51.148.6.64/29 | 🇬🇧GB | assigned |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/51.148.0.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/51.148.0.0/21" | jq
External Links