Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI4CA callsign genealogy
Currently held by PORTER, GRANT S
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 KI4CA's current licensee, walking backwards.
- Porter, Michael CFLgranted 2024-02-06cancelled 2024-06-29
Successor callsigns
Callsigns held now by people who previously held KI4CA.
- KA4CIAcancelledCENTRAL ALABAMA AMATEUR RADIO CLUBALgranted 2021-02-17cancelled 2022-07-02
All historical holders
Every license row we've seen with the callsign KI4CA, oldest first.
- PORTER, GRANT S FL1999-05-19 → cancelled 2011-05-20
- CENTRAL ALABAMA AMATEUR RADIO CLUB AL2017-11-17 → cancelled 2021-02-17
- Porter, Michael C FL2024-06-29 active