Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1KFI callsign genealogy
Currently held by Brennan, Clifford 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 K1KFI's current licensee, walking backwards.
- Brennan, Clifford JMAgranted 2003-07-16cancelled 2005-01-28
Successor callsigns
Callsigns held now by people who previously held K1KFI.
No current licensee on record previously held this callsign.