Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9ABY callsign genealogy
Currently held by SORENSEN, ROBERT 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 K9ABY's current licensee, walking backwards.
- SORENSEN, ROBERT AILgranted 2016-10-27cancelled 2016-11-19
Successor callsigns
Callsigns held now by people who previously held K9ABY.
No current licensee on record previously held this callsign.