Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1DLZ callsign genealogy
Currently held by CILCIUS, JOSEPH
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 W1DLZ's current licensee, walking backwards.
- Lizotte, Donald JMEgranted 2015-12-22cancelled 2016-01-09
Successor callsigns
Callsigns held now by people who previously held W1DLZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1DLZ, oldest first.
- CILCIUS, JOSEPH RI1998-03-31 → cancelled 2010-04-01
- Lizotte, Donald J ME2025-12-16 active