| Date | Action |
| 12/31/2002 | License Canceled |
| 12/20/2000 | Administrative Update Applied |
| 12/20/2000 | Administrative Update Applied |
| 12/16/2000 | Administrative Update Applied |
| 12/16/2000 | Administrative Update Applied |
| 12/15/2000 | Administrative Update Applied |
| 08/10/2000 | Administrative Update Applied |
| 07/29/2000 | Administrative Update Applied |
| 05/15/2000 | License Assigned (Full Assignment) |
| 08/13/1999 | License Converted |
| 03/16/1999 | License Renewed |
| 09/17/1997 | Internal Correction Applied |
| 10/30/1996 | Internal Correction Applied |
| 10/29/1996 | License Assigned (Full Assignment) |
| 04/26/1994 | License Modified |
| 01/25/1994 | License Modified |
| 11/10/1992 | License Modified |
| 02/26/1992 | License Modified |
| 02/24/1992 | License Modified |
| 08/29/1991 | License Modified |
| 07/25/1991 | License Modified |
| 07/20/1991 | License Modified |
| 08/01/1986 | License Modified |
| 05/02/1986 | License Modified |
| 10/18/1985 | License Modified |
| 10/22/1981 | License Modified |
| 10/24/1980 | License Issued |