Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ7XX callsign genealogy
Currently held by MAY, JOSEPH P
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 KJ7XX's current licensee, walking backwards.
- May, Joseph PWAgranted 2013-01-22cancelled 2013-02-12
Successor callsigns
Callsigns held now by people who previously held KJ7XX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KJ7XX, oldest first.
- MAY, JOSEPH P ID1996-05-15 → cancelled 2008-05-16
- May, Joseph P WA2023-02-22 active