Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX4SP callsign genealogy
Currently held by Alderson Jr, Edward W
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 KX4SP'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 KX4SP.
- Alderson Jr, Edward WVAgranted 2019-10-11