Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5DSD callsign genealogy
Currently held by Crook, William R
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 N5DSD's current licensee, walking backwards.
- KF5KVRcancelledDIAMOND STATE DIGITAL NETWORKARgranted 2011-04-28cancelled 2011-05-17
Successor callsigns
Callsigns held now by people who previously held N5DSD.
- Crook, William RTXgranted 2006-06-07cancelled 2018-06-29
All historical holders
Every license row we've seen with the callsign N5DSD, oldest first.
- Crook, William R TX1996-06-28 → cancelled 2001-08-29
- DIAMOND STATE DIGITAL NETWORK AR2011-05-17 → cancelled 2023-05-18