Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5EJK callsign genealogy
Currently held by Martin, John 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 W5EJK's current licensee, walking backwards.
- Martin, John FOKgranted 2006-01-12cancelled 2008-04-05
Successor callsigns
Callsigns held now by people who previously held W5EJK.
- KK5IactiveMUSKOGEE AMATEUR RADIO CLUB INCOKgranted 2026-02-28
All historical holders
Every license row we've seen with the callsign W5EJK, oldest first.
- MUSKOGEE AMATEUR RADIO CLUB INC OK2002-05-07 → cancelled 2006-03-17
- Martin, John F OK2018-03-16 active