Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1TTX callsign genealogy
Currently held by Douglass, Don N
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 N1TTX's current licensee, walking backwards.
- Douglass, Don NMDgranted 2016-02-10cancelled 2016-10-29
Successor callsigns
Callsigns held now by people who previously held N1TTX.
All historical holders
Every license row we've seen with the callsign N1TTX, oldest first.
- WILSON JR, JOHN T NH2005-01-26 → cancelled 2014-10-10
- Douglass, Don N MD2016-10-29 → cancelled 2017-12-09