205.138.240.0/20
Currently announced by AS3561 Lumen AS3561, in the routed prefix 205.138.240.0/20.
- Current ASN
- AS3561
- Lumen AS3561
- Routed prefix
- 205.138.240.0/20
- Most specific route covering this prefix
- ASNs over time
- 1
- 2 announcement records
- RIR allocation
- ARIN
- United States · 205.138.0.0/15
Routing data · Nov 8, 2026, 12:23 UTC
ASN historyEvery routed prefix covering 205.138.240.0/20
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 205.138.240.0/20 | AS3561 | Lumen AS3561 |  United States | Before monitoring | 2026-11-08 12:23 | Announcing |
| 205.138.0.0/15 | AS3561 | Lumen AS3561 | United States | Before monitoring | 2026-11-08 12:23 | Announcing |
More specific routes4 total
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 205.138.242.0/24 | AS13458 | DAVIDSON KEMPNER CAPITAL MANAGEMENT LP | United States | Before monitoring | 2026-11-08 12:23 | Announcing |
| 205.138.243.0/24 | AS3561 | Lumen AS3561 | United States | Before monitoring | 2026-11-08 12:23 | Announcing |
| 205.138.247.0/24 | AS396167 | Blackhawk Network, Inc. | United States | Before monitoring | 2026-11-08 12:23 | Announcing |
| 205.138.249.0/24 | AS10753 | Level 3 Parent, LLC | United States | Before monitoring | 2026-11-08 12:23 | Announcing |
Change logAll changes
The routes covering this address have had no origin changes since ASNBase started monitoring.