| Date | Action |
| 04/19/2001 | License Modified |
| 04/11/2001 | License Canceled |
| 04/03/2001 | Administrative Update Applied |
| 02/06/2001 | License Renewed |
| 11/16/2000 | License Assigned (Full Assignment) |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 10/02/2000 | License Transferred |
| 10/30/1999 | Administrative Update Applied |
| 10/30/1999 | Administrative Update Applied |
| 10/30/1999 | Administrative Update Applied |
| 10/30/1999 | Administrative Update Applied |
| 08/14/1999 | License Converted |
| 11/30/1998 | License Assigned (Full Assignment) |
| 12/22/1997 | License Assigned (Full Assignment) |
| 09/18/1995 | License Modified |
| 03/20/1995 | License Modified |
| 10/05/1993 | License Assigned (Full Assignment) |
| 09/23/1993 | License Modified |
| 11/25/1992 | License Transferred |
| 04/17/1991 | License Renewed |
| 02/07/1990 | License Modified |
| 11/14/1989 | License Modified |
| 10/20/1989 | Application Granted |