Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0YJW callsign genealogy
Currently held by Pospichal, John 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 K0YJW's current licensee, walking backwards.
- Pospichal, John JNEgranted 2017-11-13cancelled 2017-12-01
Successor callsigns
Callsigns held now by people who previously held K0YJW.
No current licensee on record previously held this callsign.