Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD7HX callsign genealogy
Currently held by McPheeters, John M
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 AD7HX's current licensee, walking backwards.
- Southam, Clifton JUTgranted 2019-11-14cancelled 2020-08-04
Successor callsigns
Callsigns held now by people who previously held AD7HX.
- McPheeters, John MAZgranted 2026-01-21
All historical holders
Every license row we've seen with the callsign AD7HX, oldest first.
- McPheeters, John M AZ1999-02-18 → cancelled 2006-03-21
- Southam, Clifton J UT2020-08-04 active