Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB6AZP callsign genealogy
Currently held by Castorina, John S
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 WB6AZP's current licensee, walking backwards.
- Castorina, John SCAgranted 2007-06-12cancelled 2007-07-03
Successor callsigns
Callsigns held now by people who previously held WB6AZP.
No current licensee on record previously held this callsign.