Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AK4MS callsign genealogy
Currently held by Ferguson, George S
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 AK4MS's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AK4MS.
- Ferguson, George SNCgranted 2021-10-14
All historical holders
Every license row we've seen with the callsign AK4MS, oldest first.
- Ferguson, George S SC2011-09-20 → cancelled 2011-10-21
- Sanchez, Manuel P WA2026-03-03 active