| Date | Action |
| 12/17/2005 | License Canceled |
| 11/20/2003 | Administrative Update Applied |
| 11/13/2003 | License Assigned (Full Assignment) |
| 03/29/2001 | Administrative Update Applied |
| 02/08/2001 | License Assigned (Full Assignment) |
| 09/18/2000 | License Transferred |
| 04/06/2000 | Administrative Update Applied |
| 04/06/2000 | Administrative Update Applied |
| 04/05/2000 | Administrative Update Applied |
| 08/13/1999 | License Converted |
| 07/08/1998 | License Modified |
| 01/16/1998 | License Renewed |
| 01/14/1993 | License Modified |
| 12/05/1992 | License Modified |
| 12/28/1987 | License Modified |
| 12/28/1982 | License Modified |
| 10/28/1982 | License Modified |
| 11/16/1977 | License Renewed |