Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ0P callsign genealogy
Currently held by ANDERSON, DONALD J
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 KJ0P's current licensee, walking backwards.
- Krawczak, John AMNgranted 2006-12-01cancelled 2007-06-29
Successor callsigns
Callsigns held now by people who previously held KJ0P.
- ANDERSON, DONALD JCAgranted 2008-06-20cancelled 2020-09-18
All historical holders
Every license row we've seen with the callsign KJ0P, oldest first.
- Krawczak, John A MN2017-05-15 active
- ANDERSON, DONALD J— → cancelled 1998-09-17