Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9ISI callsign genealogy
Currently held by PITZ, ROSEMARIE R
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 N9ISI's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held N9ISI.
- PITZ, ROSEMARIE RWIgranted 2009-09-18cancelled 2021-11-17