161.121.128.0/19
Currently announced by AS38910 Transit AS Tokyo, in the routed prefix 161.121.128.0/19.
- Current ASN
- AS38910
- Transit AS Tokyo
- Routed prefix
- 161.121.128.0/19
- Most specific route covering this prefix
- ASNs over time
- 1
- 1 announcement record
- RIR allocation
- APNIC
- United States · 161.121.128.0/19
Routing data · Nov 8, 2026, 10:26 UTC
ASN historyEvery routed prefix covering 161.121.128.0/19
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 161.121.128.0/19 | AS38910 | Transit AS Tokyo |  United States | Before monitoring | 2026-11-08 10:26 | Announcing |
More specific routes4 total
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 161.121.128.0/20 | AS38910 | Transit AS Tokyo | United States | Before monitoring | 2026-11-08 10:26 | Announcing |
| 161.121.130.0/24 | AS38910 | Transit AS Tokyo | United States | 2026-11-07 10:22 | 2026-11-08 10:26 | Announcing |
| 161.121.135.0/24 | AS38910 | Transit AS Tokyo | United States | 2026-11-07 10:22 | 2026-11-08 10:26 | Announcing |
| 161.121.144.0/20 | AS38910 | Transit AS Tokyo | United States | Before monitoring | 2026-11-08 10:26 | Announcing |
Change logAll changes
The routes covering this address have had no origin changes since ASNBase started monitoring.