Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1MAK callsign genealogy
Currently held by Kellner, Mark A
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 K1MAK's current licensee, walking backwards.
- Kellner, Mark AOHgranted 2005-03-22cancelled 2005-04-15
Successor callsigns
Callsigns held now by people who previously held K1MAK.
- Kellner, Mark AOHgranted 2024-01-31