Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4JMJ callsign genealogy
Currently held by ALLEN, JOHN J
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 W4JMJ's current licensee, walking backwards.
- Jones, Joan AFLgranted 2007-02-06cancelled 2007-04-03
Successor callsigns
Callsigns held now by people who previously held W4JMJ.
- ALLEN Mr, JOHN JFLgranted 2001-10-07cancelled 2006-12-30
All historical holders
Every license row we've seen with the callsign W4JMJ, oldest first.
- ALLEN, JOHN J FL1993-08-17 → cancelled 2001-10-07
- Jones, Joan A FL2017-01-04 active