Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KW4ZH callsign genealogy
Currently held by MCDONALD, BARRY W
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 KW4ZH's current licensee, walking backwards.
- MCDONALD, BARRY WTNgranted 2016-10-11cancelled 2016-11-14
Successor callsigns
Callsigns held now by people who previously held KW4ZH.
- MCDONALD, BARRY WTNgranted 2017-08-11