Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4ACD callsign genealogy
Currently held by HOLLAND, WILLIAM 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 N4ACD's current licensee, walking backwards.
- GRESHAM, JACKSON SFLgranted 2012-11-14cancelled 2022-04-19
Successor callsigns
Callsigns held now by people who previously held N4ACD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4ACD, oldest first.
- HOLLAND, WILLIAM B NC2007-10-23 → cancelled 2020-01-24
- GRESHAM, JACKSON S FL2022-04-19 active