Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6WHO callsign genealogy
Currently held by MERSHON, LOUIS
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 W6WHO's current licensee, walking backwards.
- Thomas, Jacob SCAgranted 2020-03-17cancelled 2020-04-07
Successor callsigns
Callsigns held now by people who previously held W6WHO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6WHO, oldest first.
- MERSHON, LOUIS CA1995-05-02 → cancelled 2007-05-03
- Johnson, Edward S CA2007-05-26 → cancelled 2019-05-29
- Thomas, Jacob S CA2020-04-07 active