Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4ATM callsign genealogy
Currently held by COPELAND, LELAND R
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 N4ATM's current licensee, walking backwards.
- Polson, Robert FFLgranted 2013-07-08cancelled 2015-10-27
Successor callsigns
Callsigns held now by people who previously held N4ATM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4ATM, oldest first.
- COPELAND, LELAND R FL1988-04-19 → cancelled 2000-04-20
- MUNDY, MICHAEL B TX2002-08-31 → cancelled 2014-09-03
- Polson, Robert F FL2015-10-27 active