Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1DMZ callsign genealogy
Currently held by FERREIRA, ROBERT J
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K1DMZ's current licensee, walking backwards.
- FERREIRA, ROBERT JMAgranted 2011-06-30cancelled 2011-07-19
Successor callsigns
Callsigns held now by people who previously held K1DMZ.
No current licensee on record previously held this callsign.