203.191.48.0/21
🇻🇳IPv4APNICallocatedAS24175VINAREN-AS-AP - National Agency for Scientific and Technological InformationNo ROA
CIDR
203.191.48.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇻🇳 Vietnam
City
Hanoi
RIR
APNIC
Status
allocated
Allocated
5/22/2006
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.191.48.0/21 | AS24175VINAREN-AS-AP - National Agency for Scientific and Technological Information | No ROA | — | 6/1/2026 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 203.191.48.0/22 | 🇻🇳VN | assigned | |
| 203.191.54.128/25 | 🇻🇳VN | assigned | |
| 203.191.53.128/25 | 🇻🇳VN | assigned |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/203.191.48.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.191.48.0/21" | jq
External Links