Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0STP callsign genealogy
Currently held by MC AULEY, PHILIP A
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 K0STP's current licensee, walking backwards.
- TINSLEY, STEFAN DVAgranted 2010-03-22cancelled 2011-12-24
Successor callsigns
Callsigns held now by people who previously held K0STP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0STP, oldest first.
- MC AULEY, PHILIP A MN1999-04-29 → cancelled 2011-04-30
- TINSLEY, STEFAN D VA2021-10-05 active