Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4CAM callsign genealogy
Currently held by PARRA, MARIO
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 N4CAM's current licensee, walking backwards.
- CAMPBELL, DONALD LNCgranted 2000-08-08cancelled 2008-04-18
Successor callsigns
Callsigns held now by people who previously held N4CAM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4CAM, oldest first.
- PARRA, MARIO FL1994-04-12 → cancelled 2006-04-14
- CAMPBELL, DONALD L NC2018-02-13 active