Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WC4MI callsign genealogy
Currently held by ISETTS, CLYDE 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 WC4MI's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WC4MI.
- ISETTS, CLYDE MSCgranted 2015-01-17cancelled 2015-10-10
All historical holders
Every license row we've seen with the callsign WC4MI, oldest first.
- ISETTS, CLYDE M SC2009-08-18 → cancelled 2015-01-17
- ISETTS, CLYDE M SC2025-08-06 active