Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4OAK callsign genealogy
Currently held by CAZARES, STEPHEN L
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 W4OAK's current licensee, walking backwards.
- CAZARES, STEPHEN LTNgranted 2023-03-21cancelled 2024-02-16
Successor callsigns
Callsigns held now by people who previously held W4OAK.
- ROGALSKI, RUSSELLNCgranted 2021-02-09
All historical holders
Every license row we've seen with the callsign W4OAK, oldest first.
- MELFI JR, JOSEPH F SC2005-03-10 → cancelled 2017-05-03
- ROGALSKI, RUSSELL NC2017-05-23 → cancelled 2021-02-09
- CAZARES, STEPHEN L TN2024-02-16 active