Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4SQ callsign genealogy
Currently held by WOLTEMAR, FRANK
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 K4SQ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K4SQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4SQ, oldest first.
- WOLTEMAR, FRANK FL1996-01-31 → cancelled 2008-02-01
- HUGHES, GLEN E NC2017-12-15 active