Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6MLC callsign genealogy
Currently held by MACK, FRANK D
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 W6MLC's current licensee, walking backwards.
- CORSO, MATTHEWCAgranted 2020-06-16cancelled 2020-07-07
Successor callsigns
Callsigns held now by people who previously held W6MLC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6MLC, oldest first.
- MACK, FRANK D CA2002-01-03 → cancelled 2003-08-05
- Corso, Matthew CA2020-07-07 active