Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3DZ callsign genealogy
Currently held by Tarr, Jacob 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 AB3DZ's current licensee, walking backwards.
- Tarr, Jacob AMDgranted 2005-08-18cancelled 2006-08-17
Successor callsigns
Callsigns held now by people who previously held AB3DZ.
No current licensee on record previously held this callsign.