Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5DWU callsign genealogy
Currently held by GRANTHAM SR, JEFFERY S
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 N5DWU's current licensee, walking backwards.
- WB5YLFno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held N5DWU.
- GRANTHAM SR, JEFFERY SMSgranted 2023-04-07