Dow35-
You already asked this question in this thread http://www.radioreference.com/forums/showthread.php?t=101234
which is just a few threads down from this new one...
Please don't ask the same questions over and over again...
as far as Greensboro/Guilford what we have is what is listed here in the database...if you find new Talkgroup IDs please submit them using the proper submission form found on each database page...
Thanks for understanding and thanks for being a RR.com member!
Marshall KE4ZNR