Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WD9HBB callsign genealogy
Currently held by Carlson, John A
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 WD9HBB's current licensee, walking backwards.
- Carlson, John ATXgranted 2003-03-19cancelled 2006-06-06
Successor callsigns
Callsigns held now by people who previously held WD9HBB.
No current licensee on record previously held this callsign.