Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4MHR callsign genealogy
Currently held by ALLISON JR, JOHN N
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 K4MHR's current licensee, walking backwards.
- KO4ZPVcancelledMacon Area Ham Radio SocietyTNgranted 2022-04-12cancelled 2022-04-30
Successor callsigns
Callsigns held now by people who previously held K4MHR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4MHR, oldest first.
- ALLISON JR, JOHN N VA1998-08-18 → cancelled 2010-08-19
- Macon Area Ham Radio Society TN2022-04-30 active