Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0ZAH callsign genealogy
Currently held by Holtz, Darren M
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 W0ZAH's current licensee, walking backwards.
- Holtz, Darren MMOgranted 2020-08-10cancelled 2021-09-21
Successor callsigns
Callsigns held now by people who previously held W0ZAH.
No current licensee on record previously held this callsign.