Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9TFL callsign genealogy
Currently held by STRAND, RANDOLPH E
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 N9TFL's current licensee, walking backwards.
- Biela, Clayton MINgranted 2016-06-27cancelled 2016-07-15
Successor callsigns
Callsigns held now by people who previously held N9TFL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9TFL, oldest first.
- STRAND, RANDOLPH E IN1993-04-27 → cancelled 2005-04-28
- Biela, Clayton M IN2026-05-08 active