Confidence: Medium · Source: FCC ULS · As of 2026-09-11
K3VLR callsign genealogy
Currently held by MAIDL, WALTER 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 K3VLR's current licensee, walking backwards.
- Singer, Gregory SPAgranted 2011-06-10cancelled 2017-08-11
Successor callsigns
Callsigns held now by people who previously held K3VLR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3VLR, oldest first.
- MAIDL, WALTER J PA1997-02-20 → cancelled 2009-02-21
- Singer, Gregory S PA2017-08-11 active