Confidence: Medium · Source: FCC ULS · As of 2026-09-12
ND5B callsign genealogy
Currently held by ALLMAN SR, DAVID 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 ND5B's current licensee, walking backwards.
- Chamberlain, Michael HTXgranted 2002-06-03cancelled 2004-03-12
Successor callsigns
Callsigns held now by people who previously held ND5B.
- ALLMAN SR, DAVID RWYgranted 2010-01-13cancelled 2022-03-18
All historical holders
Every license row we've seen with the callsign ND5B, oldest first.
- ALLMAN SR, DAVID R WY1991-12-03 → cancelled 2000-03-17
- CHAMBERLAIN, MICHAEL H TX2025-02-19 active