121.50.56.0/21
🇯🇵IPv4APNICallocatedNo ROA
CIDR
121.50.56.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇯🇵 Japan
City
Mitaka
RIR
APNIC
Status
allocated
Allocated
10/6/2006
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
7 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.50.57.0/24 | AS10006SECOMTRUST - SECOM Trust Systems Co.,Ltd. | No ROA | — | 6/13/2026 |
| 121.50.58.0/24 | AS10006SECOMTRUST - SECOM Trust Systems Co.,Ltd. | No ROA | — | 6/13/2026 |
| 121.50.59.0/24 | AS10006SECOMTRUST - SECOM Trust Systems Co.,Ltd. | No ROA | — | 6/13/2026 |
| 121.50.60.0/24 | AS10006SECOMTRUST - SECOM Trust Systems Co.,Ltd. | No ROA | — | 6/13/2026 |
| 121.50.61.0/24 | AS10006SECOMTRUST - SECOM Trust Systems Co.,Ltd. | No ROA | — | 6/13/2026 |
| 121.50.62.0/24 | AS10006SECOMTRUST - SECOM Trust Systems Co.,Ltd. | No ROA | — | 6/13/2026 |
| 121.50.63.0/24 | AS10006SECOMTRUST - SECOM Trust Systems Co.,Ltd. | No ROA | — | 6/13/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/121.50.56.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/121.50.56.0/21" | jq
External Links