Search the license database by callsign, name, city, or ZIP, or switch to Near a place to find everyone within a radius. It starts on amateur, so you see the operators and not the commercial transmitters; switch the service chip to look at the rest. Runs over the FCC and international amateur records. Nothing is stored.

By name or call, location matches the town the operator listed, so a metro spreads across several town names: use Near a place for a true radius. Amateur spots use the ZIP code's town center (no street address), so a town's operators share one point.