Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0CMC callsign genealogy
Currently held by GREGOR, DAVID L
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 N0CMC's current licensee, walking backwards.
- Chiu, Ming-chingCOgranted 2025-11-22cancelled 2025-12-16
Successor callsigns
Callsigns held now by people who previously held N0CMC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0CMC, oldest first.
- GREGOR, DAVID L MN2005-12-20 → cancelled 2017-12-21
- Chiu, Ming-ching CO2025-12-16 active