143.73.31.0/24
Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-10-20 | Current | AS1540 | Headquarters, USAISC |
| 2026-10-02 | 2026-10-10 | AS367 | United States Department of Defense (DoD) |
| 2026-09-03 | 2026-09-05 | AS367 | United States Department of Defense (DoD) |
| 2026-07-16 | 2026-07-17 | AS367 | United States Department of Defense (DoD) |
| 2026-06-25 | 2026-06-26 | AS367 | United States Department of Defense (DoD) |
| 2026-06-17 | 2026-06-18 | AS367 | United States Department of Defense (DoD) |