121.192.52.0/23
🇨🇳CIDR
121.192.52.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇨🇳 China
City
Shanghai
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.192.52.0/23 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 6/1/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.192.0.0/14 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 6/1/2026 |
| 121.192.0.0/15 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 6/1/2026 |
| 121.192.0.0/16 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 6/1/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/121.192.52.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/121.192.52.0/23" | jq
External Links