Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4DIB callsign genealogy
Currently held by Cooley, David O
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 N4DIB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N4DIB.
- Cooley, David OFLgranted 2009-03-17cancelled 2021-03-18