Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1TXM callsign genealogy
Currently held by Texas Medical Assistance Team 1
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 N1TXM's current licensee, walking backwards.
- KF5ILQcancelledTexas Medical Assistance Team 1TXgranted 2010-09-14cancelled 2010-11-23
Successor callsigns
Callsigns held now by people who previously held N1TXM.
- KARENKO, ALAN MCTgranted 2010-03-27cancelled 2019-02-12
All historical holders
Every license row we've seen with the callsign N1TXM, oldest first.
- KARENKO, ALAN M CT1995-01-30 → cancelled 2000-06-13
- Texas Medical Assistance Team 1 TX2010-11-23 → cancelled 2022-11-24