Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1MPC callsign genealogy
Currently held by Donahue, James 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 W1MPC's current licensee, walking backwards.
- Canfield, MichaelFLgranted 2025-07-16cancelled 2025-08-05
Successor callsigns
Callsigns held now by people who previously held W1MPC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1MPC, oldest first.
- Donahue, James J MA2004-06-24 → cancelled 2004-07-31
- CERVONE, MICHAEL P RI2007-04-10 → cancelled 2019-04-11
- Canfield, Michael FL2025-08-05 active