Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF4YH callsign genealogy
Currently held by Niccum, James M
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 AF4YH's current licensee, walking backwards.
- NICCUM, JAMES MFLgranted 1993-02-23cancelled 2000-06-13
- KD4IBRno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AF4YH.
No current licensee on record previously held this callsign.