| Date | Action |
| 03/19/2003 | License Canceled |
| 02/05/2002 | Administrative Update Applied |
| 08/14/1999 | License Converted |
| 08/31/1998 | License Renewed |
| 12/31/1997 | Internal Correction Applied |
| 11/03/1997 | License Assigned (Full Assignment) |
| 05/26/1995 | License Assigned (Full Assignment) |
| 11/29/1994 | Internal Correction Applied |
| 11/14/1994 | License Assigned (Full Assignment) |
| 11/12/1993 | License Modified |
| 11/11/1993 | License Modified |
| 11/11/1993 | License Modified |
| 11/05/1993 | License Modified |
| 10/05/1993 | License Modified |
| 07/06/1990 | License Modified |
| 06/25/1990 | License Modified |
| 10/28/1988 | License Modified |
| 05/30/1986 | License Issued |