49.122.16.0/21
🇨🇳CIDR
49.122.16.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇨🇳 China
City
Zhengzhou (Jinshui Qu)
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 49.122.16.0/21 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | RADB | 6/13/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 49.120.0.0/14 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 6/13/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS4538 | RADB | MAINT-AS58453 | 11/13/2023 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/49.122.16.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/49.122.16.0/21" | jq
External Links