Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA6PDH callsign genealogy
Currently held by HARKINS, MICHAEL W
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 KA6PDH's current licensee, walking backwards.
- HARKINS, MICHAEL WCAgranted 2020-08-17cancelled 2020-09-12
Successor callsigns
Callsigns held now by people who previously held KA6PDH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA6PDH, oldest first.
- HARKINS, MICHAEL W CA1996-03-08 → cancelled 2008-03-11
- HARKINS, MICHAEL W CA2020-09-12 active