223.121.4.0/22
ðŸ‡ðŸ‡°CIDR
223.121.4.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
ðŸ‡ðŸ‡° Hong Kong
City
Kwai Chung
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 223.121.4.0/22 | AS58453CMI-INT-HK - China Mobile International Limited | Valid | APNICRADB | 5/31/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 223.64.0.0/10 | AS9808CHINAMOBILE-CN - China Mobile Communications Group Co., Ltd. | No ROA | — | 5/31/2026 |
| 223.121.0.0/17 | AS58453CMI-INT-HK - China Mobile International Limited | Valid | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/223.121.4.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/223.121.4.0/22" | jq
External Links