Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N3TRX callsign genealogy
Currently held by MC GANN, DAVID D
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 N3TRX's current licensee, walking backwards.
- Overlow, Glenn AMDgranted 2002-11-18cancelled 2011-04-19
Successor callsigns
Callsigns held now by people who previously held N3TRX.
- OVERLOW, GLENN AMDgranted 2025-09-03
All historical holders
Every license row we've seen with the callsign N3TRX, oldest first.
- MC GANN, DAVID D NY1997-06-20 → cancelled 2006-10-29
- OVERLOW, GLENN A MD2021-01-19 → cancelled 2025-09-03