Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9ZOJ callsign genealogy
Currently held by MC KLOSKEY, AMBROSE S
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 W9ZOJ's current licensee, walking backwards.
- BETH, PETER GWIgranted 1995-10-26cancelled 2005-05-17
Successor callsigns
Callsigns held now by people who previously held W9ZOJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9ZOJ, oldest first.
- MC KLOSKEY, AMBROSE S MN1996-11-25 → cancelled 2003-09-30
- BETH, PETER G WI2015-03-26 active