Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6ISG callsign genealogy
Currently held by Granada, Irwin 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 W6ISG's current licensee, walking backwards.
- Granada, Irwin SCAgranted 2000-06-22cancelled 2005-07-06
Successor callsigns
Callsigns held now by people who previously held W6ISG.
No current licensee on record previously held this callsign.