Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD8SWM callsign genealogy
Currently held by GIDDINGS, HAROLD 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 KD8SWM's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KD8SWM.
- GIDDINGS, Sarah ROHgranted 2024-07-02cancelled 2024-07-11