uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

NX1T callsign genealogy

Currently held by HAFT, DOUGLAS W

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 NX1T's current licensee, walking backwards.

  1. KB1RDLcancelled· E
    Alper, AlexanderCTgranted 2008-09-12cancelled 2009-11-06

Successor callsigns

Callsigns held now by people who previously held NX1T.

  1. KY4Fcancelled· E
    HAFT, DOUGLAS WALgranted 2016-10-07cancelled 2019-12-07

All historical holders

Every license row we've seen with the callsign NX1T, oldest first.

  • HAFT, DOUGLAS W KY
    1999-06-25 → cancelled 2006-12-12
  • Alper, Alexander CT
    2021-04-09 active