Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WZ7H callsign genealogy
Currently held by Singleton Jr, Chester L
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 WZ7H's current licensee, walking backwards.
- Singleton Jr, Chester LORgranted 2019-12-19cancelled 2023-05-27
Successor callsigns
Callsigns held now by people who previously held WZ7H.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WZ7H, oldest first.
- SWINEY, EARL R WA2011-02-09 → cancelled 2023-05-09
- Singleton Jr, Chester L OR2023-05-27 active