210.31.192.0/21
🇨🇳CIDR
210.31.192.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇨🇳 China
City
Tangshan
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 210.31.192.0/21 | AS138182CNGI-SJZ-IX-AS-AP - CERNET2 regional IX at Hebei Normal University | No ROA | — | 5/31/2026 |
Covering Prefix
5 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 210.28.0.0/14 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 5/31/2026 |
| 210.31.128.0/17 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 5/31/2026 |
| 210.31.128.0/17 | AS24352CNGI-TJN-IX-AS-AP - CERNET2 IX at Tianjin University | No ROA | — | 5/31/2026 |
| 210.31.192.0/18 | AS138182CNGI-SJZ-IX-AS-AP - CERNET2 regional IX at Hebei Normal University | No ROA | — | 5/31/2026 |
| 210.31.199.0/24 | AS138182CNGI-SJZ-IX-AS-AP - CERNET2 regional IX at Hebei Normal University | No ROA | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/210.31.192.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/210.31.192.0/21" | jq
External Links