Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB6ABC callsign genealogy
Currently held by Castle, Amy B
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 KB6ABC's current licensee, walking backwards.
- Castle, Amy BCAgranted 2018-04-30cancelled 2018-05-22
Successor callsigns
Callsigns held now by people who previously held KB6ABC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB6ABC, oldest first.
- WILLIAMS, MIRIAM CA1993-10-05 → cancelled 2005-10-06
- Castle, Amy B CA2018-05-22 active