Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0PZN callsign genealogy
Currently held by Smith, Derrick
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 K0PZN's current licensee, walking backwards.
- Smith, DerrickTXgranted 2025-03-28cancelled 2025-05-24
Successor callsigns
Callsigns held now by people who previously held K0PZN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0PZN, oldest first.
- PUTNAM, PAUL H FL2007-12-18 → cancelled 2020-01-07
- Smith, Derrick TX2025-05-24 active