183.81.0.0/18
Currently announced by AS18403 FPT Telecom, in the routed prefix 183.81.0.0/18.
- Current ASN
- AS18403
- FPT Telecom
- Routed prefix
- 183.81.0.0/18
- Most specific route covering this prefix
- ASNs over time
- 1
- 2 announcement records
- RIR allocation
- APNIC
- Vietnam · 183.81.0.0/17
Routing data · Oct 26, 2026, 12:23 UTC
ASN historyEvery routed prefix covering 183.81.0.0/18
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 183.81.0.0/18 | AS18403 | FPT Telecom |  Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.0.0/17 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
More specific routes50 total
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 183.81.0.0/20 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.0.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.1.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.2.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.3.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.4.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.5.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.6.0/23 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.8.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.9.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.10.0/23 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.12.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.15.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.16.0/20 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.16.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.17.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.18.0/23 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.20.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.21.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.22.0/23 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.24.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.25.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.26.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.27.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.28.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.29.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.30.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.31.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.32.0/20 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.33.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.35.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.37.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.39.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.40.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.41.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.46.0/23 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.48.0/20 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.48.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.49.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.50.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.51.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.54.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.55.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.56.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.57.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.58.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.60.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.61.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.62.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
| 183.81.63.0/24 | AS18403 | FPT Telecom | Vietnam | Before monitoring | 2026-10-26 12:23 | Announcing |
Change logAll changes
The routes covering this address have had no origin changes since ASNBase started monitoring.