Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4SMS callsign genealogy
Currently held by STEBBINS, STANLEY M
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 K4SMS's current licensee, walking backwards.
- Smith, Stanley MALgranted 2017-04-12cancelled 2017-05-02
Successor callsigns
Callsigns held now by people who previously held K4SMS.
- STEBBINS, STANLEY MCOgranted 1998-08-13cancelled 2010-08-14
All historical holders
Every license row we've seen with the callsign K4SMS, oldest first.
- Smith, Stanley M AL2017-05-02 active
- STEBBINS, STANLEY M— → cancelled 1998-08-13