Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA4KA callsign genealogy
Currently held by Martin, James D
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 AA4KA's current licensee, walking backwards.
- Martin, James DTNgranted 2020-08-24cancelled 2022-02-08
Successor callsigns
Callsigns held now by people who previously held AA4KA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA4KA, oldest first.
- HERNDON, JOHN W FL2007-04-26 → cancelled 2019-06-20
- Martin, James D TN2022-02-08 active