Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4CHS callsign genealogy
Currently held by SULLIVAN III, Charles H
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 N4CHS's current licensee, walking backwards.
- SULLIVAN III, CHARLES HGAgranted 2015-10-30cancelled 2015-12-05
Successor callsigns
Callsigns held now by people who previously held N4CHS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4CHS, oldest first.
- POHL, JANET E FL2003-08-21 → cancelled 2015-11-03
- SULLIVAN III, Charles H GA2025-12-16 active