123.21.0.0/18
🇻🇳CIDR
123.21.0.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇻🇳 Vietnam
City
Hanoi
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 123.21.0.0/18 | AS45899VNPT-AS-VN - VNPT Corp | Valid | RADB | 6/13/2026 |
Covering Prefix
14 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 123.21.0.0/16 | AS45899VNPT-AS-VN - VNPT Corp | Valid | — | 6/13/2026 |
| 123.21.0.0/20 | AS45899VNPT-AS-VN - VNPT Corp | Valid | — | 6/13/2026 |
| 123.21.48.0/20 | AS45899VNPT-AS-VN - VNPT Corp | Valid | — | 6/13/2026 |
| 123.21.16.0/20 | AS45899VNPT-AS-VN - VNPT Corp | Valid | — | 6/13/2026 |
| 123.21.32.0/20 | AS45899VNPT-AS-VN - VNPT Corp | Valid | — | 6/13/2026 |
| 123.21.46.0/24 | AS45899VNPT-AS-VN - VNPT Corp | Valid | — | 6/13/2026 |
| 123.21.48.0/24 | AS45899VNPT-AS-VN - VNPT Corp | Valid | — | 6/13/2026 |
| 123.21.50.0/24 | AS45899VNPT-AS-VN - VNPT Corp | Valid | — | 6/13/2026 |
| 123.21.51.0/24 | AS45899VNPT-AS-VN - VNPT Corp | Valid | — | 6/13/2026 |
| 123.21.38.0/24 | AS45899VNPT-AS-VN - VNPT Corp | Valid | — | 6/13/2026 |
| 123.21.40.0/24 | AS45899VNPT-AS-VN - VNPT Corp | Valid | — | 6/13/2026 |
| 123.21.41.0/24 | AS45899VNPT-AS-VN - VNPT Corp | Valid | — | 6/13/2026 |
| 123.21.42.0/24 | AS45899VNPT-AS-VN - VNPT Corp | Valid | — | 6/13/2026 |
| 123.21.43.0/24 | AS45899VNPT-AS-VN - VNPT Corp | Valid | — | 6/13/2026 |
Origin ASN
AS45899
VNPT-AS-VN - VNPT Corp
Geolocation
API
Open https://api.ipctl.io/v1/prefix/123.21.0.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/123.21.0.0/18" | jq
External Links