Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ZAP callsign genealogy
Currently held by MIDGLEY, JAMES A
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 K4ZAP's current licensee, walking backwards.
- Midgley, Douglas MFLgranted 2009-01-20cancelled 2009-02-10
Successor callsigns
Callsigns held now by people who previously held K4ZAP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4ZAP, oldest first.
- MIDGLEY, JAMES A FL1996-11-05 → cancelled 2008-11-06
- Midgley, Douglas M FL2018-12-28 active