221.16.0.0/12
🇯🇵CIDR
221.16.0.0/12
IP Version
IPv4
Addresses
1M
Mask
/12 (255.240.0.0)
Country
🇯🇵 Japan
City
Minato
RIR
APNIC
Status
allocated
Allocated
1/15/2003
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 221.16.0.0/12 | AS17676GIGAINFRA - SoftBank Corp. | Valid | RADB | 6/14/2026 |
Covering Prefix
4 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 221.27.0.0/16 | AS17676GIGAINFRA - SoftBank Corp. | Valid | — | 6/14/2026 |
| 221.29.0.0/16 | AS17676GIGAINFRA - SoftBank Corp. | Valid | — | 6/14/2026 |
| 221.30.0.0/16 | AS17676GIGAINFRA - SoftBank Corp. | Valid | — | 6/14/2026 |
| 221.31.0.0/16 | AS17676GIGAINFRA - SoftBank Corp. | Valid | — | 6/14/2026 |
Origin ASN
AS17676
GIGAINFRA - SoftBank Corp.
Geolocation
API
Open https://api.ipctl.io/v1/prefix/221.16.0.0/12Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/221.16.0.0/12" | jq
External Links