Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA9SDD callsign genealogy
Currently held by Lawrence, David 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 WA9SDD's current licensee, walking backwards.
- Lawrence, David DINgranted 2020-08-24cancelled 2020-09-11
Successor callsigns
Callsigns held now by people who previously held WA9SDD.
No current licensee on record previously held this callsign.