Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG0JX callsign genealogy
Currently held by MULCAHY, MARC A
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 KG0JX's current licensee, walking backwards.
- Mulcahy, Marc ATXgranted 2012-12-19cancelled 2018-03-23
Successor callsigns
Callsigns held now by people who previously held KG0JX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KG0JX, oldest first.
- MULCAHY, MARC A CO1995-10-16 → cancelled 2005-11-10
- Mulcahy, Marc A TX2018-03-23 active