123.255.64.0/20
ðŸ‡ðŸ‡°CIDR
123.255.64.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
ðŸ‡ðŸ‡° Hong Kong
RIR
APNIC
Status
allocated
Allocated
6/15/2009
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not currently announced in BGP. See covering prefix below. | ||||
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 123.255.64.0/21 | AS3661ERX-CUHKNET - The Chinese University of Hong Kong | No ROA | — | 5/31/2026 |
Geolocation
CountryðŸ‡ðŸ‡°Hong KongHK
Coordinates22.3964, 114.1095 ↗
API
Open https://api.ipctl.io/v1/prefix/123.255.64.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/123.255.64.0/20" | jq
External Links