Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7SGI callsign genealogy
Currently held by Holden, Mark E
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 K7SGI's current licensee, walking backwards.
- Holden, Mark EUTgranted 2008-03-12cancelled 2015-10-23
Successor callsigns
Callsigns held now by people who previously held K7SGI.
No current licensee on record previously held this callsign.