Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3SOF callsign genealogy
Currently held by Montalbano, John A
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 W3SOF's current licensee, walking backwards.
- MONTALBANO, JOHN APAgranted 2006-03-29cancelled 2006-10-20
Successor callsigns
Callsigns held now by people who previously held W3SOF.
No current licensee on record previously held this callsign.