Broadband PCS A and B block licenses are assigned on the basis of 51 Major Trading Areas (MTAs). Blocks C through F
are assigned on the basis of 493 Basic Trading Areas (BTAs). Both geographic assignments are based on the Rand McNally
Commercial Atlas and Marketing Guide. Additionally, the Market Area Cross Reference
utility also enables you to search by
state or county to find MTAs and BTAs, by MTA to find BTAs and counties, and by BTA to find MTAs and counties.