203.158.0.0/21
🇹ðŸ‡CIDR
203.158.0.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇹🇠Thailand
City
Kham Thale So
RIR
APNIC
Status
allocated
Allocated
12/21/1994
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.158.0.0/21 | AS55545SUT-AS-AP - Suranaree University of Technology | No ROA | RADB | 5/30/2026 |
Covering Prefix
8 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.158.0.0/24 | AS55545SUT-AS-AP - Suranaree University of Technology | No ROA | — | 5/30/2026 |
| 203.158.1.0/24 | AS55545SUT-AS-AP - Suranaree University of Technology | No ROA | — | 5/30/2026 |
| 203.158.2.0/24 | AS55545SUT-AS-AP - Suranaree University of Technology | No ROA | — | 5/30/2026 |
| 203.158.3.0/24 | AS55545SUT-AS-AP - Suranaree University of Technology | No ROA | — | 5/30/2026 |
| 203.158.4.0/24 | AS55545SUT-AS-AP - Suranaree University of Technology | No ROA | — | 5/30/2026 |
| 203.158.5.0/24 | AS55545SUT-AS-AP - Suranaree University of Technology | No ROA | — | 5/30/2026 |
| 203.158.6.0/24 | AS55545SUT-AS-AP - Suranaree University of Technology | No ROA | — | 5/30/2026 |
| 203.158.7.0/24 | AS55545SUT-AS-AP - Suranaree University of Technology | No ROA | — | 5/30/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/203.158.0.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.158.0.0/21" | jq
External Links