Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4OCZ callsign genealogy
Currently held by REDLINGSHAFER, MARION D
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 W4OCZ's current licensee, walking backwards.
- Long, Joseph MTNgranted 2014-05-06cancelled 2017-02-22
Successor callsigns
Callsigns held now by people who previously held W4OCZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4OCZ, oldest first.
- REDLINGSHAFER, MARION D NM1988-04-12 → cancelled 2000-04-13
- Long, Joseph M TN2017-02-22 active