Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1VOI callsign genealogy
Currently held by Plaster, John W
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 K1VOI's current licensee, walking backwards.
- Plaster, John WMAgranted 2001-04-10cancelled 2002-06-11
Successor callsigns
Callsigns held now by people who previously held K1VOI.
No current licensee on record previously held this callsign.