66.231.0.0/19
Currently announced by AS13576 South Dakota Network dba SDN Communications, in the routed prefix 66.231.0.0/19.
- Current ASN
- AS13576
- South Dakota Network dba SDN Communications
- Routed prefix
- 66.231.0.0/19
- Most specific route covering this prefix
- ASNs over time
- 1
- 1 announcement record
- RIR allocation
- ARIN
- United States · 66.231.0.0/19
Routing data · Oct 24, 2026, 06:23 UTC
ASN historyEvery routed prefix covering 66.231.0.0/19
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 66.231.0.0/19 | AS13576 | South Dakota Network dba SDN Communications |  United States | Before monitoring | 2026-10-24 06:23 | Announcing |
More specific routes20 total
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 66.231.0.0/24 | AS393417 | SDN Communications | United States | 2026-10-23 22:19 | 2026-10-24 06:23 | Announcing |
| 66.231.0.0/24 | AS13576 | South Dakota Network dba SDN Communications | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.2.0/23 | AS401415 | Alliance Communications | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.9.0/24 | AS17203 | Beresford Municipal Telephone Company | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.11.0/24 | AS17203 | Beresford Municipal Telephone Company | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.12.0/24 | AS17203 | Beresford Municipal Telephone Company | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.13.0/24 | AS18785 | Santel Communications Cooperative, Inc. | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.15.0/24 | AS13576 | South Dakota Network dba SDN Communications | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.16.0/24 | AS399439 | Mitchell Telecom | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.17.0/24 | AS399439 | Mitchell Telecom | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.19.0/24 | AS6312 | TrioTel Communications, Inc. | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.21.0/24 | AS393417 | SDN Communications | United States | 2026-10-23 22:19 | 2026-10-24 06:23 | Announcing |
| 66.231.21.0/24 | AS13576 | South Dakota Network dba SDN Communications | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.22.0/24 | AS18785 | Santel Communications Cooperative, Inc. | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.24.0/24 | AS6312 | TrioTel Communications, Inc. | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.26.0/24 | AS13576 | South Dakota Network dba SDN Communications | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.29.0/24 | AS13576 | South Dakota Network dba SDN Communications | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.30.0/23 | AS63172 | Venture Communications Cooperative | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.30.0/24 | AS63172 | Venture Communications Cooperative | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
| 66.231.31.0/24 | AS63172 | Venture Communications Cooperative | United States | Before monitoring | 2026-10-24 06:23 | Announcing |
Change logAll changes
The routes covering this address have had no origin changes since ASNBase started monitoring.