Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1TZW callsign genealogy
Currently held by RICHARDSON, DAVID
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 K1TZW's current licensee, walking backwards.
- RICHARDSON, DAVIDVAgranted 2020-06-05cancelled 2020-07-14
Successor callsigns
Callsigns held now by people who previously held K1TZW.
No current licensee on record previously held this callsign.