Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9MKE callsign genealogy
Currently held by Henrickson, William B
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 W9MKE's current licensee, walking backwards.
- La Joie, Nicholas MWIgranted 2026-02-03cancelled 2026-04-11
Successor callsigns
Callsigns held now by people who previously held W9MKE.
- Henrickson, William BWIgranted 2024-02-03cancelled 2024-09-06
All historical holders
Every license row we've seen with the callsign W9MKE, oldest first.
- Henrickson, William B WI2023-04-14 → cancelled 2024-02-03
- La Joie, Nicholas M WI2026-04-11 active