121.100.8.0/21
🇯🇵CIDR
121.100.8.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇯🇵 Japan
City
Kawasaki (Shimonumabe)
RIR
APNIC
Status
allocated
Allocated
4/16/2008
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.100.8.0/21 | AS23776NEC - NEC Corporation | No ROA | — | 6/1/2026 |
Origin ASN
AS23776
NEC - NEC Corporation
Geolocation
API
Open https://api.ipctl.io/v1/prefix/121.100.8.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/121.100.8.0/21" | jq
External Links