Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4FSB callsign genealogy
Currently held by BARTOLETT III, FRANK 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 N4FSB's current licensee, walking backwards.
- BARTOLETT III, FRANK SFLgranted 2009-12-18cancelled 2012-12-21
Successor callsigns
Callsigns held now by people who previously held N4FSB.
No current licensee on record previously held this callsign.