122.51.0.0/16
🇨🇳CIDR
122.51.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇨🇳 China
City
Shanghai
RIR
APNIC
Status
allocated
Allocated
7/19/2006
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 122.51.0.0/16 | AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company Limited | No ROA | APNIC | 5/31/2026 |
Covering Prefix
4 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 122.51.0.0/18 | AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company Limited | No ROA | — | 5/31/2026 |
| 122.51.64.0/18 | AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company Limited | No ROA | — | 5/31/2026 |
| 122.51.128.0/18 | AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company Limited | No ROA | — | 5/31/2026 |
| 122.51.192.0/18 | AS45090TENCENT-NET-AP - Shenzhen Tencent Computer Systems Company Limited | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS45090 | APNIC | MAINT-CNNIC-AP | 4/18/2019 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/122.51.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/122.51.0.0/16" | jq
External Links