Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WS7Z callsign genealogy
Currently held by ALM, ROLLIN R
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 WS7Z's current licensee, walking backwards.
- GRANT, CHRISUTgranted 2010-04-01cancelled 2010-10-05
Successor callsigns
Callsigns held now by people who previously held WS7Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WS7Z, oldest first.
- ALM, ROLLIN R NV1998-08-18 → cancelled 2010-08-19
- GRANT, CHRIS ID2020-10-17 active