Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5SMO callsign genealogy
Currently held by Smotrilla, William
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 N5SMO's current licensee, walking backwards.
- Smotrilla, WilliamTXgranted 2016-03-21cancelled 2017-08-25
Successor callsigns
Callsigns held now by people who previously held N5SMO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5SMO, oldest first.
- CURTIS, CHESTER M TX1991-04-02 → cancelled 2003-04-03
- Smotrilla, William TX2017-08-25 active