Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7TNZ callsign genealogy
Currently held by Tanzer, Catherine 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 K7TNZ's current licensee, walking backwards.
- Tanzer, Catherine MORgranted 2020-12-09cancelled 2021-01-15
Successor callsigns
Callsigns held now by people who previously held K7TNZ.
No current licensee on record previously held this callsign.