143.204.221.0/24
Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-09-29 | Current | AS16509 | Amazon.com, Inc. |
| 2026-07-29 | 2026-09-28 | AS16509 | Amazon.com, Inc. |
| 2026-06-13 | 2026-07-28 | AS16509 | Amazon.com, Inc. |