Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD7JB callsign genealogy
Currently held by Johnson, Douglas H
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 AD7JB's current licensee, walking backwards.
- Johnson, Douglas HAZgranted 2006-07-10cancelled 2006-07-14
Successor callsigns
Callsigns held now by people who previously held AD7JB.
No current licensee on record previously held this callsign.