Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9APH callsign genealogy
Currently held by Davidson, Kristin R
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 K9APH's current licensee, walking backwards.
- Davidson, Erik AWIgranted 2015-06-01cancelled 2015-06-20
Successor callsigns
Callsigns held now by people who previously held K9APH.
- Davidson, Kristin RWIgranted 2020-09-22