Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N3RDQ callsign genealogy
Currently held by Case, William P
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 N3RDQ's current licensee, walking backwards.
- Case, William PMOgranted 2013-09-19cancelled 2013-10-17
Successor callsigns
Callsigns held now by people who previously held N3RDQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3RDQ, oldest first.
- ALBERTO JR, FELIX P PA1993-12-21 → cancelled 2005-12-22
- Case, William P MO2024-01-30 active