210.51.248.0/21
🇨🇳CIDR
210.51.248.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇨🇳 China
City
Guancheng
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 210.51.248.0/21 | AS9929CUII - CHINA UNICOM Industrial Internet Backbone | No ROA | — | 5/31/2026 |
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 |
| 210.51.192.0/18 | AS9929CUII - CHINA UNICOM Industrial Internet Backbone | No ROA | — | 5/31/2026 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 210.51.252.0/23 | 🇨🇳CN | assigned | |
| 210.51.254.0/23 | 🇨🇳CN | assigned | |
| 210.51.253.0/24 | 🇨🇳CN | assigned | |
| 210.51.248.0/24 | 🇨🇳CN | assigned | |
| 210.51.249.0/25 | 🇨🇳CN | assigned | |
| 210.51.254.0/25 | 🇨🇳CN | assigned | |
| 210.51.250.0/25 | 🇨🇳CN | assigned | |
| 210.51.255.128/25 | 🇨🇳CN | assigned | |
| 210.51.251.0/25 | 🇨🇳CN | assigned | |
| 210.51.254.128/25 | 🇨🇳CN | assigned | |
| 210.51.255.0/25 | 🇨🇳CN | assigned | |
| 210.51.251.128/26 | 🇨🇳CN | assigned | |
| 210.51.249.128/27 | 🇨🇳CN | assigned | |
| 210.51.251.192/27 | 🇨🇳CN | assigned | |
| 210.51.250.224/28 | 🇨🇳CN | assigned | |
| 210.51.250.160/28 | 🇨🇳CN | assigned | |
| 210.51.250.192/28 | 🇨🇳CN | assigned | |
| 210.51.251.240/28 | 🇨🇳CN | assigned | |
| 210.51.249.160/28 | 🇨🇳CN | assigned | |
| 210.51.250.176/28 | 🇨🇳CN | assigned | |
| 210.51.250.240/28 | 🇨🇳CN | assigned | |
| 210.51.249.224/28 | 🇨🇳CN | assigned | |
| 210.51.249.240/28 | 🇨🇳CN | assigned | |
| 210.51.250.208/28 | 🇨🇳CN | assigned | |
| 210.51.249.176/28 | 🇨🇳CN | assigned | |
| 210.51.251.224/28 | 🇨🇳CN | assigned | |
| 210.51.249.192/30 | 🇨🇳CN | assigned |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/210.51.248.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/210.51.248.0/21" | jq
External Links