143.73.8.0/23
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 |
| 2026-10-27 | 2026-10-29 | AS1540 | Headquarters, USAISC |
| 2026-10-21 | 2026-10-23 | AS1540 | Headquarters, USAISC |
| 2026-10-15 | 2026-10-16 | AS367 | United States Department of Defense (DoD) |
| 2026-10-08 | 2026-10-09 | AS367 | United States Department of Defense (DoD) |
| 2026-10-02 | 2026-10-03 | AS367 | United States Department of Defense (DoD) |
| 2026-09-30 | 2026-10-01 | AS367 | United States Department of Defense (DoD) |
| 2026-09-25 | 2026-09-26 | AS1540 | Headquarters, USAISC |
| 2026-09-22 | 2026-09-24 | AS1540 | Headquarters, USAISC |
| 2026-09-17 | 2026-09-19 | AS1540 | Headquarters, USAISC |
| 2026-09-10 | 2026-09-12 | AS1540 | Headquarters, USAISC |
| 2026-09-03 | 2026-09-04 | AS1540 | Headquarters, USAISC |
| 2026-09-01 | 2026-09-02 | AS1540 | Headquarters, USAISC |
| 2026-08-28 | 2026-08-29 | AS1540 | Headquarters, USAISC |
| 2026-08-26 | 2026-08-27 | AS1540 | Headquarters, USAISC |
| 2026-07-22 | 2026-07-23 | AS1540 | Headquarters, USAISC |
| 2026-06-13 | 2026-06-20 | AS1540 | Headquarters, USAISC |