Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4EJM callsign genealogy
Currently held by PLONSEY, ROBERT
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 N4EJM's current licensee, walking backwards.
- Madden, John ENCgranted 2019-02-14cancelled 2019-06-04
Successor callsigns
Callsigns held now by people who previously held N4EJM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4EJM, oldest first.
- PLONSEY, ROBERT NC2004-08-13 → cancelled 2016-10-07
- Madden, John E NC2019-06-04 active