Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4CXO callsign genealogy
Currently held by Pierson, James D
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 KN4CXO'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 KN4CXO.
- Pierson, James DFLgranted 2017-04-28cancelled 2018-05-01