WP4UDM - Ham operator in SAN JUAN, PR

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Callsign: WP4UDM
Class: Technician
Name: COLON-CRUZ, ALBERTO L
City: SAN JUAN
State: PR
Zipcode: 00926
Status: Active
Grant Date: 09/23/2026
Expires: 09/23/2036
Uls: FCC Info

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