151.133.0.0/16
🇬🇧IPv4RIPENCCassignedNo ROA
CIDR
151.133.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇬🇧 United Kingdom
City
London
RIR
RIPENCC
Status
assigned
Allocated
5/30/1991
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
11 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 151.133.128.0/18 | AS60187LGFL-AS London Grid for Learning Trust | No ROA | — | 6/13/2026 |
| 151.133.192.0/19 | AS60187LGFL-AS London Grid for Learning Trust | No ROA | — | 6/13/2026 |
| 151.133.240.0/20 | AS60187LGFL-AS London Grid for Learning Trust | No ROA | — | 6/13/2026 |
| 151.133.48.0/20 | AS60187LGFL-AS London Grid for Learning Trust | No ROA | — | 6/13/2026 |
| 151.133.0.0/20 | AS60187LGFL-AS London Grid for Learning Trust | No ROA | — | 6/13/2026 |
| 151.133.24.0/21 | AS60187LGFL-AS London Grid for Learning Trust | No ROA | — | 6/13/2026 |
| 151.133.16.0/21 | AS60187LGFL-AS London Grid for Learning Trust | No ROA | — | 6/13/2026 |
| 151.133.224.0/21 | AS60187LGFL-AS London Grid for Learning Trust | No ROA | — | 6/13/2026 |
| 151.133.32.0/21 | AS60187LGFL-AS London Grid for Learning Trust | No ROA | — | 6/13/2026 |
| 151.133.236.0/24 | AS60187LGFL-AS London Grid for Learning Trust | No ROA | — | 6/13/2026 |
| 151.133.237.0/24 | AS60187LGFL-AS London Grid for Learning Trust | No ROA | — | 6/13/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS60187 | RIPE | LBON2-MNT | 8/14/2025 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/151.133.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/151.133.0.0/16" | jq
External Links