Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC7MM callsign genealogy
Currently held by JOHNSON, DAVID W
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 AC7MM's current licensee, walking backwards.
- JOHNSON, DAVID WUTgranted 1999-12-24cancelled 2001-03-29
Successor callsigns
Callsigns held now by people who previously held AC7MM.
No current licensee on record previously held this callsign.