103.21.140.0/22
🇨🇳CIDR
103.21.140.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇨🇳 China
City
Pudong (Pudong Xinqu)
RIR
APNIC
Status
allocated
Allocated
10/11/2012
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 103.21.140.0/22 | AS4812CHINANET-SH-AP - China Telecom (Group) | Valid | RADB | 6/1/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 103.21.140.0/23 | AS4811CHINANET-SHANGHAI-MAN - China Telecom (Group) | Valid | — | 6/1/2026 |
| 103.21.142.0/23 | AS4811CHINANET-SHANGHAI-MAN - China Telecom (Group) | Valid | — | 6/1/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/103.21.140.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/103.21.140.0/22" | jq
External Links