6.129.40.0/21
Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-09-04 | Current | AS1540 | Headquarters, USAISC |
| 2026-07-31 | 2026-09-04 | AS367 | United States Department of Defense (DoD) |
| 2026-06-13 | 2026-07-30 | AS367 | United States Department of Defense (DoD) |