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

NT1F callsign genealogy

Currently held by Tiffin, Gerald D

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 NT1F's current licensee, walking backwards.

  1. K5UYYcancelled· E
    Tiffin, Gerald DOKgranted 2002-10-08cancelled 2004-03-26
  2. KD5SKRcancelled· E
    Tiffin, Gerald DOKgranted 2002-05-08cancelled 2002-10-08

Successor callsigns

Callsigns held now by people who previously held NT1F.

  1. AF4PIactive· E
    THOMAS, ROBERT WVAgranted 2021-12-02

All historical holders

Every license row we've seen with the callsign NT1F, oldest first.

  • Tiffin, Gerald D OK
    2024-07-10 active
  • → cancelled 1999-07-19