Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6RZO callsign genealogy
Currently held by DE CARO, GREGORY J
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 W6RZO's current licensee, walking backwards.
- DE CARO, GREGORY JCAgranted 2010-12-16cancelled 2011-10-07
Successor callsigns
Callsigns held now by people who previously held W6RZO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6RZO, oldest first.
- DREHER, ROBERT E PA1995-01-21 → cancelled 2007-01-23
- DE CARO, GREGORY J AZ2021-09-10 active