210.51.16.0/22
🇨🇳IPv4APNICassignedNo ROA
CIDR
210.51.16.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇨🇳 China
City
Beizang
RIR
APNIC
Status
assigned
Allocated
-
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
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 210.51.0.0/16 | AS9929CUII - CHINA UNICOM Industrial Internet Backbone | No ROA | — | 5/31/2026 |
| 210.51.18.0/24 | AS4808CHINA169-BJ - China Unicom Beijing Province Network | Valid | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS4808 | APNIC | MAINT-CNCGROUP-RR | 5/20/2016 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 210.51.19.0/24 | 🇨🇳CN | assigned | |
| 210.51.18.160/27 | 🇨🇳CN | assigned | |
| 210.51.18.128/27 | 🇨🇳CN | assigned | |
| 210.51.18.16/28 | 🇨🇳CN | assigned |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/210.51.16.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/210.51.16.0/22" | jq
External Links