Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR1SPI callsign genealogy
Currently held by Arenz, Kristin A
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 KR1SPI's current licensee, walking backwards.
- Valencia, Ricky ACAgranted 2018-02-05cancelled 2021-05-21
Successor callsigns
Callsigns held now by people who previously held KR1SPI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KR1SPI, oldest first.
- Arenz, Kristin A CA2008-05-24 → cancelled 2020-05-27
- Valencia, Ricky A CA2021-05-21 active