Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7SH callsign genealogy
Currently held by Mount Timpanogos Radio Club
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 W7SH's current licensee, walking backwards.
- HIRATSUKA, SADASHIORgranted 2008-12-15cancelled 2010-11-06
Successor callsigns
Callsigns held now by people who previously held W7SH.
- KA7RactiveMount Timpanogos Radio ClubUTgranted 2018-07-21
All historical holders
Every license row we've seen with the callsign W7SH, oldest first.
- MAKI, ROBERT H WA1996-11-05 → cancelled 2005-11-20
- Mount Timpanogos Radio Club UT2007-12-11 → cancelled 2008-10-18
- HIRATSUKA, SADASHI CA2020-09-15 active