Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI4FSH callsign genealogy
Currently held by Mezzacapo, James J
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 KI4FSH's current licensee, walking backwards.
- SMITH, JEREMY DGAgranted 2022-01-11cancelled 2023-03-28
Successor callsigns
Callsigns held now by people who previously held KI4FSH.
- Smith, Jeremy DGAgranted 2024-02-03
All historical holders
Every license row we've seen with the callsign KI4FSH, oldest first.
- Mezzacapo, James J FL2004-05-25 → cancelled 2016-05-26
- Smith, Jeremy D GA2023-03-28 → cancelled 2024-02-03