Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC3HC callsign genealogy
Currently held by Achtermann Jr., 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 AC3HC's current licensee, walking backwards.
- Achtermann Jr., John MPAgranted 2021-01-11cancelled 2021-02-08
Successor callsigns
Callsigns held now by people who previously held AC3HC.
No current licensee on record previously held this callsign.