uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

W4JFF callsign genealogy

Currently held by Rogers, Jeffery S

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 W4JFF's current licensee, walking backwards.

  1. KM4UKOcancelled· G
    Rogers, Jeffery SALgranted 2016-06-03cancelled 2016-07-01

Successor callsigns

Callsigns held now by people who previously held W4JFF.

  1. WZ4Bactive· E
    Smith, Jeffrey JGAgranted 2016-12-08

All historical holders

Every license row we've seen with the callsign W4JFF, oldest first.

  • Smith, Jeffrey J GA
    2004-06-19 → cancelled 2007-02-09
  • Rogers, Jeffery S AL
    2016-07-01 active
← Back to W4JFF License history →