Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4DBL callsign genealogy
Currently held by LITTON, DONALD 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 N4DBL's current licensee, walking backwards.
- Lloyd, Doug BNCgranted 2025-03-01cancelled 2025-07-26
Successor callsigns
Callsigns held now by people who previously held N4DBL.
- LITTON, DONALD BSDgranted 2019-03-05
All historical holders
Every license row we've seen with the callsign N4DBL, oldest first.
- LITTON, DONALD B AZ2013-11-13 → cancelled 2019-03-05
- Lloyd, Doug B NC2025-07-26 active