221.129.0.0/16
🇨🇳CIDR
221.129.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇨🇳 China
City
Wangdingdi (Xiqing Qu)
RIR
APNIC
Status
allocated
Allocated
10/30/2003
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 221.129.0.0/16 | AS23841TJBTN - 6/F, No.3 Huatian Road, New Technology Industry Area | Valid | — | 6/1/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 221.129.23.0/24 | AS23841TJBTN - 6/F, No.3 Huatian Road, New Technology Industry Area | Invalid | — | 6/1/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 221.129.0.0/16 | AS23841 | /16 | apnic |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/221.129.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/221.129.0.0/16" | jq
External Links