Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9DPY callsign genealogy
Currently held by CHAPMAN JR, DAVID E
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 W9DPY's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W9DPY.
No current licensee on record previously held this callsign.