Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NM7O callsign genealogy
Currently held by SMITH, WILBUR 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 NM7O's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NM7O.
- SMITH, WILBUR JORgranted 2010-03-03cancelled 2015-09-11
All historical holders
Every license row we've seen with the callsign NM7O, oldest first.
- SMITH, WILBUR J OR1994-11-21 → cancelled 2000-05-02
- MARTIN, NATHAN J OR2022-10-28 active