Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4YOA callsign genealogy
Currently held by KLOTZBACH II, AMOR R
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 KF4YOA'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 KF4YOA.
- W2EAactiveSOUTH JERSEY MOUNTAIN TOPPERS AMAT RAD CLBPAgranted 2018-06-25