| Date | Action |
| 11/22/2002 | License Canceled |
| 07/13/2002 | Administrative Update Applied |
| 06/03/2002 | License Assigned (Full Assignment) |
| 12/06/2001 | License Assigned (Full Assignment) |
| 04/10/2001 | Administrative Update Applied |
| 12/12/2000 | License Renewed |
| 11/10/2000 | License Transferred |
| 02/17/2000 | Administrative Update Applied |
| 08/14/1999 | License Converted |
| 03/01/1999 | Internal Correction Applied |
| 02/16/1999 | License Transferred |
| 04/03/1997 | License Assigned (Full Assignment) |
| 09/12/1996 | License Assigned (Full Assignment) |
| 11/06/1995 | License Transferred |
| 12/29/1992 | License Assigned (Full Assignment) |
| 04/18/1991 | License Renewed |
| 03/27/1991 | License Renewed |
| 04/17/1988 | Application Granted |