Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KE4KQP callsign genealogy
Currently held by KEMPF, WILLIAM
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 KE4KQP's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KE4KQP.
- KEMPF, WILLIAMTXgranted 2025-04-25