Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4MOS callsign genealogy
Currently held by KAUFMAN, ROBERT 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 N4MOS's current licensee, walking backwards.
- Moss, Eric BTNgranted 2015-01-13cancelled 2015-02-20
Successor callsigns
Callsigns held now by people who previously held N4MOS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4MOS, oldest first.
- KAUFMAN, ROBERT A SC1995-11-20 → cancelled 2007-11-21
- Moss, Eric B TN2025-05-20 active