Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WM5Z callsign genealogy
Currently held by PALMER, JERRY 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 WM5Z's current licensee, walking backwards.
- York, Michael ATNgranted 2011-09-19cancelled 2014-12-23
Successor callsigns
Callsigns held now by people who previously held WM5Z.
- PALMER, JERRY EARgranted 2012-12-04cancelled 2018-08-14
All historical holders
Every license row we've seen with the callsign WM5Z, oldest first.
- Friis, Steven J NM2003-11-12 → cancelled 2009-03-05
- PALMER, JERRY E AR2011-03-26 → cancelled 2012-12-04
- York, Michael A TN2024-12-03 active