Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD1PH callsign genealogy
Currently held by Vincent, Mark K
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 KD1PH's current licensee, walking backwards.
- N1JRYno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KD1PH.
- Vincent, Mark KCTgranted 2007-10-30cancelled 2019-10-31