Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KW4JAB callsign genealogy
Currently held by Bolger III, 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 KW4JAB's current licensee, walking backwards.
- Bolger III, John ATNgranted 2018-02-05cancelled 2021-01-08
Successor callsigns
Callsigns held now by people who previously held KW4JAB.
No current licensee on record previously held this callsign.