Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB7SAM callsign genealogy
Currently held by Hamm Jr, Samuel J
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 KB7SAM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KB7SAM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB7SAM, oldest first.
- MC ELROY, MARION C WA2002-10-23 → cancelled 2015-01-21
- Hamm Jr, Samuel J WA2018-03-02 active