Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4DSP callsign genealogy
Currently held by Pearson, David S
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 WA4DSP's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WA4DSP.
No current licensee on record previously held this callsign.