Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OFC callsign genealogy
Currently held by Humphrey, James F
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 K4OFC's current licensee, walking backwards.
- HUMPHREY, JAMES FTNgranted 1995-03-08cancelled 2000-05-30
Successor callsigns
Callsigns held now by people who previously held K4OFC.
No current licensee on record previously held this callsign.