Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC8WSP callsign genealogy
Currently held by Warzecha, Michal P
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 KC8WSP's current licensee, walking backwards.
- Thompson, Celina MWAgranted 2014-05-28cancelled 2014-06-24
Successor callsigns
Callsigns held now by people who previously held KC8WSP.
- Warzecha, Michal PCAgranted 2024-09-04
All historical holders
Every license row we've seen with the callsign KC8WSP, oldest first.
- Warzecha, Michal P CA2003-05-16 → cancelled 2004-08-24
- Thompson, Celina M WA2014-06-24 → cancelled 2026-06-25