210.51.8.0/21
🇨🇳CIDR
210.51.8.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇨🇳 China
City
Jinrongjie (Xicheng District)
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 210.51.8.0/21 | AS4808CHINA169-BJ - China Unicom Beijing Province Network | Valid | — | 5/31/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 210.51.0.0/16 | AS9929CUII - CHINA UNICOM Industrial Internet Backbone | No ROA | — | 5/31/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 210.51.8.0/21 | AS4808 | /21 | apnic |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 210.51.8.160/27 | 🇨🇳CN | assigned | |
| 210.51.8.192/27 | 🇨🇳CN | assigned | |
| 210.51.8.96/27 | 🇨🇳CN | assigned | |
| 210.51.8.0/27 | 🇨🇳CN | assigned | |
| 210.51.8.224/27 | 🇨🇳CN | assigned | |
| 210.51.8.32/27 | 🇨🇳CN | assigned | |
| 210.51.8.128/27 | 🇨🇳CN | assigned | |
| 210.51.8.80/28 | 🇨🇳CN | assigned | |
| 210.51.8.64/28 | 🇨🇳CN | assigned |
Geolocation
Country🇨🇳ChinaCN
RegionBeijing
CityJinrongjie (Xicheng District)
Coordinates39.9099, 116.3590 ↗
API
Open https://api.ipctl.io/v1/prefix/210.51.8.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/210.51.8.0/21" | jq
External Links