Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1SDA callsign genealogy
Currently held by Allard, Sharon D
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 K1SDA's current licensee, walking backwards.
- Allard, Sharon DFLgranted 2007-05-29cancelled 2007-06-22
Successor callsigns
Callsigns held now by people who previously held K1SDA.
No current licensee on record previously held this callsign.