Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N8JBO callsign genealogy
Currently held by O'Keeffe, James B
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 N8JBO's current licensee, walking backwards.
- O Keeffe, James BOHgranted 2004-11-17cancelled 2005-02-11
Successor callsigns
Callsigns held now by people who previously held N8JBO.
- COOK III, JAMES EMIgranted 2012-11-17cancelled 2013-03-29
All historical holders
Every license row we've seen with the callsign N8JBO, oldest first.
- COOK III, JAMES E AK2002-12-27 → cancelled 2003-01-22
- O'Keeffe, James B OH2015-02-10 active