221.128.248.0/21
🇨🇳CIDR
221.128.248.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇨🇳 China
City
Beijing
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 221.128.248.0/21 | AS18180TWNIC-AS - Taiwan Network Information Center | No ROA | RADB | 6/2/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 221.128.248.0/22 | AS18180TWNIC-AS - Taiwan Network Information Center | No ROA | — | 6/2/2026 |
| 221.128.252.0/22 | AS18180TWNIC-AS - Taiwan Network Information Center | No ROA | — | 6/2/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS18180 | RADB | MAINT-AS134121 | 3/9/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/221.128.248.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/221.128.248.0/21" | jq
External Links