Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NB3U callsign genealogy
Currently held by MC DONALD, JEFFERY 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 NB3U's current licensee, walking backwards.
- Johnson, David WVAgranted 2015-03-27cancelled 2015-07-18
Successor callsigns
Callsigns held now by people who previously held NB3U.
- MC DONALD, JEFFERY AOHgranted 2012-01-10cancelled 2018-09-05
All historical holders
Every license row we've seen with the callsign NB3U, oldest first.
- MC DONALD, JEFFERY A OH2012-01-10 → cancelled 2013-06-25
- Johnson, David W VA2015-07-18 active