| Date | Action |
| 08/14/1999 | License Converted |
| 04/05/1999 | License Canceled |
| 03/30/1998 | Internal Correction Applied |
| 05/29/1997 | License Modified |
| 06/13/1996 | Internal Correction Applied |
| 06/11/1996 | Internal Correction Applied |
| 02/06/1996 | License Modified |
| 09/11/1995 | License Modified |
| 08/07/1995 | License Assigned (Full Assignment) |
| 10/18/1994 | License Transferred |
| 06/30/1994 | License Modified |
| 07/08/1993 | License Modified |
| 07/08/1993 | License Modified |
| 01/29/1993 | License Modified |
| 03/19/1992 | License Modified |
| 11/15/1991 | License Modified |
| 04/17/1991 | License Renewed |
| 12/18/1990 | License Modified |
| 12/18/1990 | License Modified |
| 03/13/1990 | License Modified |
| 07/19/1988 | License Modified |
| 09/29/1987 | License Modified |
| 03/27/1987 | License Modified |
| 09/30/1986 | Application Granted |