Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4BDL callsign genealogy
Currently held by SPAINHOUR, TERRY
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 K4BDL's current licensee, walking backwards.
- SPAINHOUR, TERRY MNCgranted 2023-04-25cancelled 2023-06-22
Successor callsigns
Callsigns held now by people who previously held K4BDL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4BDL, oldest first.
- HEATHERLY, FRANK D AL2007-04-25 → cancelled 2019-06-21
- SPAINHOUR, TERRY NC2023-06-22 active