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

K4LIS callsign genealogy

Currently held by Fricks, Tyler L

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 K4LIS's current licensee, walking backwards.

  1. K7JTFcancelled· G
    Fricks, Tyler LMTgranted 2016-09-27cancelled 2018-06-29
  2. KI7GRIcancelled· G
    Fricks, Tyler LMTgranted 2016-08-29cancelled 2016-09-27

Successor callsigns

Callsigns held now by people who previously held K4LIS.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K4LIS, oldest first.

  • PATTERSON, CLAY NC
    1998-10-15 → cancelled 2010-10-16
  • Fricks, Tyler L CO
    2018-06-29 active
← Back to K4LIS License history →