121.111.128.0/18
🇯🇵CIDR
121.111.128.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇯🇵 Japan
City
Shinjuku
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.111.128.0/18 | AS2516KDDI - KDDI CORPORATION | Valid | RADB | 6/13/2026 |
Origin ASN
AS2516
KDDI - KDDI CORPORATION
Geolocation
API
Open https://api.ipctl.io/v1/prefix/121.111.128.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/121.111.128.0/18" | jq
External Links