Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6RSF callsign genealogy
Currently held by Rancho Santa Fe Fire Protection District
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 K6RSF's current licensee, walking backwards.
- KI6SNGcancelledRancho Santa Fe Fire Protection DistrictCAgranted 2008-08-05cancelled 2008-08-30
Successor callsigns
Callsigns held now by people who previously held K6RSF.
No current licensee on record previously held this callsign.