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

W4LTC callsign genealogy

Currently held by Comfort, William E

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 W4LTC's current licensee, walking backwards.

  1. W0VZactive· E
    Comfort, William ENCgranted 2024-01-20

Successor callsigns

Callsigns held now by people who previously held W4LTC.

  1. W0VZactive· E
    Comfort, William ENCgranted 2024-01-20
  2. W0VZcancelled· E
    Comfort, William ENCgranted 2022-02-05cancelled 2022-04-29

All historical holders

Every license row we've seen with the callsign W4LTC, oldest first.

  • Comfort, William E NC
    2021-10-22 → cancelled 2022-02-05
  • Comfort, William E NC
    2022-04-29 → cancelled 2024-01-20
← Back to W4LTC License history →