18.173.16.0/21
Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-10-16 | Current | AS16509 | Amazon.com, Inc. |
| 2026-08-27 | 2026-09-01 | AS16509 | Amazon.com, Inc. |
| 2026-08-19 | 2026-08-21 | AS16509 | Amazon.com, Inc. |
| 2026-07-16 | 2026-08-14 | AS16509 | Amazon.com, Inc. |
| 2026-06-24 | 2026-07-15 | AS16509 | Amazon.com, Inc. |
| 2026-06-13 | 2026-06-20 | AS16509 | Amazon.com, Inc. |