Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WW4ZT callsign genealogy
Currently held by Reeder, Robert 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 WW4ZT's current licensee, walking backwards.
- Reeder, Robert SSCgranted 2021-05-18cancelled 2023-06-27
Successor callsigns
Callsigns held now by people who previously held WW4ZT.
No current licensee on record previously held this callsign.