Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WM7C callsign genealogy
Currently held by CHRISTIANSEN, HAROLD 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 WM7C's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WM7C.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WM7C, oldest first.
- CHRISTIANSEN, HAROLD B CO2003-07-09 → cancelled 2012-02-07
- Gibson, Scott CA2023-12-01 active