172.56.56.0/21
Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-10-13 | Current | AS21928 | T-Mobile USA, Inc. |
| 2026-06-13 | 2026-10-11 | AS21928 | T-Mobile USA, Inc. |
172.56.56.0/21Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-10-13 | Current | AS21928 | T-Mobile USA, Inc. |
| 2026-06-13 | 2026-10-11 | AS21928 | T-Mobile USA, Inc. |