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- AMATEUR RADIO LICENSE SEARCH
Callsign: KB1MZU
Class: Technician
Name: O'Brien, Patrick A
City: West Springfield
State: MA
Zipcode: 01089
Status: Active
Grant Date: 12/23/2025
Expires: 01/17/2036
Uls: FCC Info
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Ham Callsigns search - version 2.1
