Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7ARP callsign genealogy
Currently held by Karpowich, Marc M
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 K7ARP's current licensee, walking backwards.
- Karpowich, Marc MUTgranted 2014-12-17cancelled 2015-05-27
Successor callsigns
Callsigns held now by people who previously held K7ARP.
No current licensee on record previously held this callsign.