Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4SPB callsign genealogy
Currently held by White, Adam
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 K4SPB's current licensee, walking backwards.
- White, Adam LNCgranted 2016-02-24cancelled 2017-11-25
Successor callsigns
Callsigns held now by people who previously held K4SPB.
No current licensee on record previously held this callsign.