Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0MAO callsign genealogy
Currently held by Chang, Peter
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 N0MAO's current licensee, walking backwards.
- Chang, PeterMNgranted 2023-02-24cancelled 2023-03-17
Successor callsigns
Callsigns held now by people who previously held N0MAO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0MAO, oldest first.
- MC COY, RONNIE M KS2010-03-24 → cancelled 2022-06-07
- Chang, Peter MN2023-03-17 active