Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0ACJ callsign genealogy
Currently held by COLLINS, GREGG B
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 N0ACJ's current licensee, walking backwards.
- JOHNSON, ADAM CMOgranted 2020-05-18cancelled 2021-02-09
Successor callsigns
Callsigns held now by people who previously held N0ACJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0ACJ, oldest first.
- COLLINS, GREGG B KS1989-04-04 → cancelled 2001-04-05
- Johnson, Adam C MO2021-02-09 active