Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WM4Q callsign genealogy
Currently held by HARRIS, ROBERT W
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 WM4Q's current licensee, walking backwards.
- HARRIS, ROBERT WTNgranted 1995-08-10cancelled 2000-12-16
Successor callsigns
Callsigns held now by people who previously held WM4Q.
- JOHNSON, CARY VKYgranted 2017-10-24
All historical holders
Every license row we've seen with the callsign WM4Q, oldest first.
- HARRIS, ROBERT W TN2020-09-23 active
- JOHNSON, CARY V— → cancelled 1998-01-14