Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NJ5O callsign genealogy
Currently held by GILES, JAMES H
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 NJ5O's current licensee, walking backwards.
- OSBORNE, JAMES RTXgranted 2000-10-31cancelled 2002-09-21
Successor callsigns
Callsigns held now by people who previously held NJ5O.
- GILES, JAMES HTXgranted 2010-08-03cancelled 2010-08-18
All historical holders
Every license row we've seen with the callsign NJ5O, oldest first.
- GILES, JAMES H AK1997-04-01 → cancelled 2000-09-01
- OSBORNE, JAMES R CO2022-09-08 active