Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4SMS callsign genealogy
Currently held by HOWELL, CHARLES 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 N4SMS's current licensee, walking backwards.
- KJ4RWYcancelledSchofield Middle School Radio ClubSCgranted 2010-02-02cancelled 2010-04-17
Successor callsigns
Callsigns held now by people who previously held N4SMS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4SMS, oldest first.
- HOWELL, CHARLES R NC1992-03-31 → cancelled 2004-04-01
- Schofield Middle School Radio Club SC2020-02-18 active