Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1DAL callsign genealogy
Currently held by ISBELL, WILLIAM J
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 K1DAL's current licensee, walking backwards.
- ISBELL, WILLIAM JGAgranted 2018-07-16cancelled 2022-04-05
Successor callsigns
Callsigns held now by people who previously held K1DAL.
No current licensee on record previously held this callsign.