FCC Amateur and GMRS license lookup

Search public FCC ULS records by callsign, FRN, name, or location.

KR4GBW

Collin D Chamberlin

Active
Service
Amateur
Class
Technician
Location
MECHANICSVILLE, VA
FRN
0037304326
Granted
Aug 14, 2025
Expires
Aug 14, 2035

Offline data

ULS Offline

Keep Amateur and GMRS lookup on your device for offline lookup, with automatic updates. Online lookup is always free.

Manage or cancel in Google Play.

Monthly Checking price…
Annual Checking price…

Renews automatically until cancelled.

ULS Offline subscriptions are coming soon.