Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5DXB callsign genealogy
Currently held by Thillemann, Harold 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 N5DXB's current licensee, walking backwards.
- THILLEMANN, HAROLD RTXgranted 2006-04-18cancelled 2006-10-07
Successor callsigns
Callsigns held now by people who previously held N5DXB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5DXB, oldest first.
- MEYER JR, ARTHUR C TX1989-07-18 → cancelled 2001-07-19
- Thillemann, Harold R TX2006-10-07 → cancelled 2018-10-10