| Date | Action |
| 01/05/2007 | License Canceled |
| 04/20/2001 | License Assigned (Full Assignment) |
| 02/14/2001 | Administrative Update Applied |
| 11/13/1999 | Administrative Update Applied |
| 11/13/1999 | Administrative Update Applied |
| 08/13/1999 | License Converted |
| 06/23/1999 | License Assigned (Full Assignment) |
| 07/20/1998 | License Renewed |
| 11/13/1995 | Internal Correction Applied |
| 11/06/1995 | License Assigned (Full Assignment) |
| 04/12/1993 | License Modified |
| 03/01/1988 | License Modified |
| 02/29/1988 | License Modified |
| 02/17/1988 | License Modified |
| 05/08/1987 | License Modified |
| 03/30/1982 | License Modified |
| 02/08/1982 | License Modified |
| 05/19/1981 | License Modified |
| 01/05/1981 | License Modified |