Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB6OCO callsign genealogy
Currently held by Cline, Donald L
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 WB6OCO's current licensee, walking backwards.
- Cline, Donald LAZgranted 2013-06-01cancelled 2021-11-19
Successor callsigns
Callsigns held now by people who previously held WB6OCO.
- Cline, Donald LAZgranted 2013-06-01cancelled 2021-11-19
All historical holders
Every license row we've seen with the callsign WB6OCO, oldest first.
- Cline, Donald L AZ2002-07-03 → cancelled 2003-08-08
- Cline, Donald L AZ2021-11-19 active