Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WL7OX callsign genealogy
Currently held by GRIBBLE, DAVID J
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 WL7OX's current licensee, walking backwards.
- Gribble, Ryan AWAgranted 2026-05-19cancelled 2026-06-09
Successor callsigns
Callsigns held now by people who previously held WL7OX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WL7OX, oldest first.
- GRIBBLE, DAVID J AK1993-12-21 → cancelled 2005-12-22
- Gribble, Ryan A WA2026-06-09 active