Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6ISO callsign genealogy
Currently held by BIXBY, PATRICK W
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 N6ISO's current licensee, walking backwards.
- Vadlamani, Prasanna Nikhil SathCAgranted 2025-09-04cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held N6ISO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6ISO, oldest first.
- BIXBY, PATRICK W CA1998-01-23 → cancelled 2010-01-26
- Vadlamani, Prasanna Nikhil Sath CA2025-12-09 active