Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA1TK callsign genealogy
Currently held by Koechel, Tara L
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 AA1TK's current licensee, walking backwards.
- Koechel, Tara LNHgranted 2010-06-21cancelled 2012-07-13
Successor callsigns
Callsigns held now by people who previously held AA1TK.
- LECHOWICZ, LESZEK JMAgranted 2017-09-06
All historical holders
Every license row we've seen with the callsign AA1TK, oldest first.
- LECHOWICZ, LESZEK J MA1998-03-13 → cancelled 2007-11-27
- Koechel, Tara L NH2012-07-13 → cancelled 2024-07-16