Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM5B callsign genealogy
Currently held by SMITH, JEFFREY B
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 KM5B's current licensee, walking backwards.
- SMITH, JEFFREY BCOgranted 2015-09-22cancelled 2015-11-10
Successor callsigns
Callsigns held now by people who previously held KM5B.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KM5B, oldest first.
- WALLACE JR, LEW L TX2005-09-13 → cancelled 2013-10-20
- SMITH, JEFFREY B WA2025-12-17 active