| Date | Action |
| 11/15/2003 | License Canceled |
| 08/09/2003 | License Transferred |
| 08/22/2002 | License Assigned (Full Assignment) |
| 06/03/2002 | License Assigned (Full Assignment) |
| 12/06/2001 | License Assigned (Full Assignment) |
| 12/12/2000 | License Renewed |
| 11/10/2000 | License Transferred |
| 10/04/2000 | Administrative Update Applied |
| 10/04/2000 | Administrative Update Applied |
| 08/13/1999 | License Converted |
| 03/02/1999 | Internal Correction Applied |
| 02/16/1999 | License Transferred |
| 01/21/1999 | Internal Correction Applied |
| 10/13/1998 | License Assigned (Full Assignment) |
| 05/29/1997 | Internal Correction Applied |
| 01/19/1994 | License Transferred |
| 07/23/1992 | License Transferred |
| 07/22/1992 | License Transferred |
| 05/22/1985 | License Modified |
| 12/19/1984 | Application Granted |