Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5SDP callsign genealogy
Currently held by Parker 208, Don D
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 W5SDP's current licensee, walking backwards.
- Parker, Don DOKgranted 2012-03-15cancelled 2015-07-25
Successor callsigns
Callsigns held now by people who previously held W5SDP.
- Parker 208, Don DOKgranted 2018-02-16