Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9ZTA callsign genealogy
Currently held by Mandal, Alexander
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 K9ZTA's current licensee, walking backwards.
- Mandal, AlexanderNYgranted 2022-04-18cancelled 2022-05-10
Successor callsigns
Callsigns held now by people who previously held K9ZTA.
No current licensee on record previously held this callsign.