Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7ZTM callsign genealogy
Currently held by Macias, Jonathan 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 W7ZTM's current licensee, walking backwards.
- Macias, Jonathan ACAgranted 2018-04-05cancelled 2019-10-22
Successor callsigns
Callsigns held now by people who previously held W7ZTM.
No current licensee on record previously held this callsign.