Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ7CH callsign genealogy
Currently held by Hartl, James C
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 AJ7CH's current licensee, walking backwards.
- Hartl, James CWAgranted 2017-02-24cancelled 2017-05-02
Successor callsigns
Callsigns held now by people who previously held AJ7CH.
No current licensee on record previously held this callsign.