Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4JOH callsign genealogy
Currently held by White, John 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 N4JOH's current licensee, walking backwards.
- White, John MKYgranted 2002-02-20cancelled 2002-04-05
Successor callsigns
Callsigns held now by people who previously held N4JOH.
No current licensee on record previously held this callsign.