| Date | Action |
| 12/09/1999 | License Canceled |
| 08/13/1999 | License Converted |
| 04/02/1999 | Internal Correction Applied |
| 03/02/1999 | Internal Correction Applied |
| 02/24/1999 | License Assigned (Full Assignment) |
| 02/16/1999 | License Transferred |
| 10/13/1998 | License Transferred |
| 10/06/1998 | License Assigned (Full Assignment) |
| 12/24/1997 | License Assigned (Full Assignment) |
| 08/06/1997 | Internal Correction Applied |
| 08/06/1997 | Internal Correction Applied |
| 05/08/1997 | Internal Correction Applied |
| 05/09/1995 | License Transferred |
| 03/28/1991 | License Renewed |
| 05/30/1986 | Application Granted |