199.253.128.0/21
Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-06-13 | Current | AS13660 | Blue Cross Blue Shield of North Dakota |
199.253.128.0/21Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-06-13 | Current | AS13660 | Blue Cross Blue Shield of North Dakota |