121.10.100.0/22
🇨🇳CIDR
121.10.100.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇨🇳 China
City
Zhanjiang (Caotanzhen)
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.10.100.0/22 | AS140312CHINATELECOM-GUANGDONG-ZHANJIANG-5G-NETWORK - CHINATELECOM Guangdong province Zhanjiang 5G network | No ROA | RADB | 5/31/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.8.0.0/13 | AS4134CHINANET-BACKBONE - No.31,Jin-rong Street | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS140312 | RADB | MAINT-AS4813 | 3/16/2026 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 121.10.101.128/25 | 🇨🇳CN | assigned | |
| 121.10.101.64/26 | 🇨🇳CN | assigned | |
| 121.10.100.192/26 | 🇨🇳CN | assigned | |
| 121.10.102.128/26 | 🇨🇳CN | assigned | |
| 121.10.103.64/26 | 🇨🇳CN | assigned | |
| 121.10.103.128/26 | 🇨🇳CN | assigned | |
| 121.10.100.0/26 | 🇨🇳CN | assigned | |
| 121.10.103.0/26 | 🇨🇳CN | assigned | |
| 121.10.100.64/26 | 🇨🇳CN | assigned | |
| 121.10.102.192/26 | 🇨🇳CN | assigned | |
| 121.10.102.0/26 | 🇨🇳CN | assigned | |
| 121.10.102.64/26 | 🇨🇳CN | assigned | |
| 121.10.101.0/27 | 🇨🇳CN | assigned | |
| 121.10.100.128/27 | 🇨🇳CN | assigned | |
| 121.10.100.160/27 | 🇨🇳CN | assigned | |
| 121.10.101.32/27 | 🇨🇳CN | assigned |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/121.10.100.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/121.10.100.0/22" | jq
External Links