Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6AM callsign genealogy
Currently held by SCHEFSKI, JACK H
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 N6AM's current licensee, walking backwards.
- SCHEFSKI, JACK HCAgranted 2008-02-20cancelled 2009-08-07
Successor callsigns
Callsigns held now by people who previously held N6AM.
- SCHEFSKI, JACK HCAgranted 2008-02-20cancelled 2009-08-07
All historical holders
Every license row we've seen with the callsign N6AM, oldest first.
- SCHEFSKI, JACK H CA2006-10-05 → cancelled 2008-02-20
- SCHEFSKI, JACK H CA2019-07-30 active