Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7JYH callsign genealogy
Currently held by KNAPP, JOSEPH 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 K7JYH's current licensee, walking backwards.
- Knapp, Joseph WORgranted 2022-09-13cancelled 2023-07-11
Successor callsigns
Callsigns held now by people who previously held K7JYH.
- KNAPP, JOSEPH WORgranted 2026-05-16