121.58.144.0/20
🇨🇳IPv4APNICallocated RPKI Valid
CIDR
121.58.144.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇨🇳 China
City
Chaowai (Chaoyang)
RIR
APNIC
Status
allocated
Allocated
11/13/2007
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
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.58.156.0/22 | AS4847CNIX-AP - China Networks Inter-Exchange | Valid | — | 6/13/2026 |
| 121.58.156.0/23 | AS4808CHINA169-BJ - China Unicom Beijing Province Network | Valid | — | 6/13/2026 |
| 121.58.156.0/23 | AS4847CNIX-AP - China Networks Inter-Exchange | Valid | — | 6/13/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS7497 | RADB | MAINT-AS3491 | 3/28/2025 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 121.58.152.0/21 | 🇨🇳CN | assigned | |
| 121.58.144.0/21 | 🇨🇳CN | assigned |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/121.58.144.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/121.58.144.0/20" | jq
External Links