Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN1APP callsign genealogy
Currently held by Knapp, Mary
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 KN1APP's current licensee, walking backwards.
- Knapp, MaryVTgranted 2021-03-02cancelled 2021-05-01
Successor callsigns
Callsigns held now by people who previously held KN1APP.
No current licensee on record previously held this callsign.