Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4JMS callsign genealogy
Currently held by SULLIVAN, KARL D
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 N4JMS's current licensee, walking backwards.
- Sealy, Jean MSCgranted 2003-04-11cancelled 2003-05-20
Successor callsigns
Callsigns held now by people who previously held N4JMS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4JMS, oldest first.
- SULLIVAN, KARL D GA1989-02-21 → cancelled 2001-02-22
- Sealy, Jean M SC2023-08-24 active