Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD4ZM callsign genealogy
Currently held by RAINES, RONALD G
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 AD4ZM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AD4ZM.
- RAINES, RONALD GSCgranted 2013-06-28cancelled 2017-09-08
All historical holders
Every license row we've seen with the callsign AD4ZM, oldest first.
- RAINES, RONALD G SC2004-01-28 → cancelled 2013-06-28
- RAINES, RONALD G SC2017-09-08 active