143.74.37.0/24
Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-11-10 | Current | AS1540 | Headquarters, USAISC |
| 2026-11-07 | 2026-11-08 | AS1540 | Headquarters, USAISC |
| 2026-09-22 | 2026-09-26 | AS1540 | Headquarters, USAISC |
| 2026-09-18 | 2026-09-19 | AS1540 | Headquarters, USAISC |
| 2026-09-15 | 2026-09-17 | AS1540 | Headquarters, USAISC |
| 2026-09-09 | 2026-09-10 | AS1540 | Headquarters, USAISC |
| 2026-08-11 | 2026-08-18 | AS1540 | Headquarters, USAISC |
| 2026-08-07 | 2026-08-09 | AS1516 | Headquarters, USAISC |