| Date | Action |
| 11/09/2000 | License Canceled |
| 08/13/1999 | License Converted |
| 08/05/1999 | Internal Correction Applied |
| 03/02/1999 | Internal Correction Applied |
| 02/24/1999 | License Assigned (Full Assignment) |
| 02/16/1999 | License Transferred |
| 02/01/1999 | Internal Correction Applied |
| 08/14/1998 | License Transferred |
| 12/24/1997 | License Assigned (Full Assignment) |
| 05/30/1997 | Internal Correction Applied |
| 03/19/1996 | License Transferred |
| 03/29/1994 | License Assigned (Full Assignment) |
| 09/01/1988 | License Assigned (Full Assignment) |
| 05/02/1988 | Application Granted |