Callsign: K0OSZ Class: General Name: FRANTZ III, IVAN D City: HINGHAM State: MA Zipcode: 02043 Status: Active Grant Date: 11/25/2025 Expires: 03/03/2035 Uls: FCC Info
K0OSZ - Ham operator in HINGHAM, MA
Search any USA Ham Radio Callsign Database updated once a week Ham Callsigns search - version 2.1