Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4DBL callsign genealogy
Currently held by LIVINGSTON, DAVID 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 K4DBL's current licensee, walking backwards.
- LIVINGSTON, DAVID BVAgranted 2020-01-29cancelled 2020-02-21
Successor callsigns
Callsigns held now by people who previously held K4DBL.
No current licensee on record previously held this callsign.