| Date | Action |
| 08/13/1999 | License Converted |
| 10/16/1997 | License Canceled |
| 08/01/1997 | Internal Correction Applied |
| 07/30/1997 | License Modified |
| 03/21/1997 | Internal Correction Applied |
| 03/21/1997 | Internal Correction Applied |
| 12/03/1996 | License Modified |
| 06/26/1995 | License Modified |
| 12/27/1994 | License Transferred |
| 03/07/1994 | License Modified |
| 02/07/1994 | License Modified |
| 10/20/1992 | License Transferred |
| 07/20/1992 | License Assigned (Full Assignment) |
| 03/25/1992 | License Assigned (Full Assignment) |
| 11/29/1991 | License Assigned (Full Assignment) |
| 06/26/1991 | License Modified |
| 04/08/1991 | License Renewed |
| 01/22/1990 | License Modified |
| 07/28/1988 | License Modified |
| 07/28/1988 | License Modified |
| 10/31/1985 | Application Granted |