Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4ARF callsign genealogy
Currently held by SPECHLER, JULIE
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 KB4ARF's current licensee, walking backwards.
- Jennings, Dale RSCgranted 2022-11-23cancelled 2023-02-07
Successor callsigns
Callsigns held now by people who previously held KB4ARF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4ARF, oldest first.
- SPECHLER, JULIE FL1987-09-01 → cancelled 1999-09-02
- Jennings, Dale R SC2023-02-07 active