It can be done using one of my support files, and then aggregating FSAs by their first character.
http://www.box.net/shared/lpmrkrgu2r
The SQL for the aggregation would be
Code:
select distinct left(fsaldu,1) as Territory, left(fsaldu,3) as FSA
from FsaLduLatLng
order by 2
Save the results to a text file and then import it to create your territories.
In the event you don't have a query tool, I'm attaching the resulting text file "FSA_Terr.txt"
HTH
-Paul