Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ7OLB callsign genealogy
Currently held by Olbert, Jonathan D
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 KJ7OLB's current licensee, walking backwards.
- Olbert, Jonathan DAZgranted 2018-08-16cancelled 2018-09-11
Successor callsigns
Callsigns held now by people who previously held KJ7OLB.
No current licensee on record previously held this callsign.