Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7JDI callsign genealogy
Currently held by ISOM, 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 W7JDI's current licensee, walking backwards.
- ISOM, JONATHAN DWAgranted 2005-06-28cancelled 2008-07-08
Successor callsigns
Callsigns held now by people who previously held W7JDI.
No current licensee on record previously held this callsign.