Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4CBM callsign genealogy
Currently held by Smith, Jason 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 KD4CBM's current licensee, walking backwards.
- Smith, Jason MTNgranted 2014-05-19cancelled 2014-08-29
Successor callsigns
Callsigns held now by people who previously held KD4CBM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4CBM, oldest first.
- CAERY II, JAMES V FL1991-06-25 → cancelled 2003-06-26
- Smith, Jason M TN2024-06-14 active