122.255.224.0/20
🇯🇵IPv4APNICallocated RPKI Valid
CIDR
122.255.224.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇯🇵 Japan
City
Chiyoda City
RIR
APNIC
Status
allocated
Allocated
8/27/2009
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
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 122.255.128.0/17 | AS4721JCN - JCOM Co., Ltd. | Valid | — | 6/13/2026 |
| 122.255.192.0/18 | AS4721JCN - JCOM Co., Ltd. | Valid | — | 6/13/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/122.255.224.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/122.255.224.0/20" | jq
External Links