Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NN1RR callsign genealogy
Currently held by Hayungs, Mario
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 NN1RR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NN1RR.
No current licensee on record previously held this callsign.