Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0PYK callsign genealogy
Currently held by Rieff, Thomas M
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 K0PYK's current licensee, walking backwards.
- Rieff, Thomas MMNgranted 2003-05-13cancelled 2004-06-26
Successor callsigns
Callsigns held now by people who previously held K0PYK.
- Rieff, Thomas MMNgranted 2026-08-07