Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0JSP callsign genealogy
Currently held by PAHL, JEFFREY 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 K0JSP's current licensee, walking backwards.
- PAHL, JEFFREY SMNgranted 2006-04-13cancelled 2007-08-25
Successor callsigns
Callsigns held now by people who previously held K0JSP.
- PAHL, JEFFREY SWIgranted 2018-05-01