Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KL5DQ callsign genealogy
Currently held by Swisher, William C
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 KL5DQ's current licensee, walking backwards.
- Dellaquila, Mark EAKgranted 2021-01-15cancelled 2026-03-10
Successor callsigns
Callsigns held now by people who previously held KL5DQ.
- Swisher, William CAKgranted 2021-01-22
All historical holders
Every license row we've seen with the callsign KL5DQ, oldest first.
- Swisher, William C AK2021-01-04 → cancelled 2021-01-22
- Dellaquila, Mark E AK2026-03-10 active