Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4UH callsign genealogy
Currently held by KEMPF, RAYMOND A
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 K4UH's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K4UH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4UH, oldest first.
- KEMPF, RAYMOND A MD1999-07-08 → cancelled 1999-12-25
- Med - Wireless Society Of Bay Pines FL2005-05-07 → cancelled 2017-05-09
- BENTLEY, OTIS H AL2017-05-26 active