Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4PYA callsign genealogy
Currently held by SPARKS, CROSBY
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 K4PYA's current licensee, walking backwards.
- Sparks, Robert CMIgranted 2019-11-22cancelled 2019-12-13
Successor callsigns
Callsigns held now by people who previously held K4PYA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4PYA, oldest first.
- SPARKS, CROSBY KY1998-06-09 → cancelled 2010-06-10
- Sparks, Robert C MI2019-12-13 active