Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KC4MJS callsign genealogy
Currently held by Shoaf, Michael J
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 KC4MJS's current licensee, walking backwards.
- Shoaf, Michael JNCgranted 2024-12-27cancelled 2026-06-19
Successor callsigns
Callsigns held now by people who previously held KC4MJS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC4MJS, oldest first.
- LANE, MEREDITH K NC1989-09-05 → cancelled 2001-09-06
- Shoaf, Michael J NC2026-06-19 active