Confidence: Medium · Source: FCC ULS · As of 2026-09-09
W5ZAK callsign genealogy
Currently held by BOLIN, ZACHARY H
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 W5ZAK's current licensee, walking backwards.
- Bolin, ZacharyFLgranted 2022-05-21cancelled 2024-07-02
Successor callsigns
Callsigns held now by people who previously held W5ZAK.
All historical holders
Every license row we've seen with the callsign W5ZAK, oldest first.
- SUMRALL, HAROLD W LA1994-09-15 → cancelled 2006-09-16
- BOLIN, ZACHARY H FL2018-11-13 → cancelled 2022-05-21
- BOLIN, ZACHARY FL2024-07-02 → cancelled 2024-12-27