Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA0ZO callsign genealogy
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 AA0ZO's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held AA0ZO.
- HOBBY, THOMAS KNMgranted 2006-08-16cancelled 2018-11-06