Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OBB callsign genealogy
Currently held by Ray, Patricia 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 K4OBB's current licensee, walking backwards.
- Schiefer, RobertFLgranted 2025-05-30cancelled 2025-06-17
Successor callsigns
Callsigns held now by people who previously held K4OBB.
- Ray, Trish LTNgranted 2005-08-12cancelled 2011-05-10
All historical holders
Every license row we've seen with the callsign K4OBB, oldest first.
- Ray, Patricia L TN2005-05-17 → cancelled 2005-08-12
- Schiefer, Robert FL2025-06-17 active