Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4CM callsign genealogy
Currently held by Vasquez, Luis I
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 WA4CM's current licensee, walking backwards.
- VASQUEZ, LUISVAgranted 2014-04-14cancelled 2024-03-12
Successor callsigns
Callsigns held now by people who previously held WA4CM.
- MAUKONEN, CHRISTOPHER EOHgranted 2021-07-16
All historical holders
Every license row we've seen with the callsign WA4CM, oldest first.
- MAUKONEN, CHRISTOPHER E OH2012-04-19 → cancelled 2021-07-16
- Vasquez, Luis I VA2024-03-12 active