Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0JBA callsign genealogy
Currently held by GUEST, JAMES M
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 N0JBA's current licensee, walking backwards.
- GUEST, JAMES MMOgranted 1999-03-11cancelled 2002-11-22
Successor callsigns
Callsigns held now by people who previously held N0JBA.
- GUEST, JAMES MMOgranted 1999-03-11cancelled 2002-11-22
All historical holders
Every license row we've seen with the callsign N0JBA, oldest first.
- GUEST, JAMES M MO2012-12-29 → cancelled 2024-12-31
- GUEST, JAMES M— → cancelled 1999-03-11