Confidence: Medium · Source: FCC ULS · As of 2026-09-15
W7HBO callsign genealogy
Currently held by Stewart, John P
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 W7HBO's current licensee, walking backwards.
- Stewart, John PTNgranted 2004-02-27cancelled 2004-04-13
Successor callsigns
Callsigns held now by people who previously held W7HBO.
No current licensee on record previously held this callsign.