Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3ZZ callsign genealogy
Currently held by ZIMMERMAN, EUGENE 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 W3ZZ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W3ZZ.
- K7AWactiveTULSA DX ASSOCIATIONOKgranted 2021-09-14
All historical holders
Every license row we've seen with the callsign W3ZZ, oldest first.
- ZIMMERMAN, EUGENE M MD2004-12-10 → cancelled 2012-06-03
- TULSA DX ASSOCIATION OK2014-06-24 → cancelled 2021-09-14
- Guma, Anthony C VA2023-10-03 active