Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF5TZV callsign genealogy
Currently held by Crecelius, Nancy A
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 KF5TZV's current licensee, walking backwards.
- Crecelius, Nancy ATXgranted 2022-04-04cancelled 2023-11-21
Successor callsigns
Callsigns held now by people who previously held KF5TZV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF5TZV, oldest first.
- Nawojski, Robert TX2013-02-27 → cancelled 2021-10-22
- Crecelius, Nancy A TX2023-11-21 active