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

W7MUT callsign genealogy

Currently held by SULLIVAN, RONOLD 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 W7MUT's current licensee, walking backwards.

  1. K7WPTactive· G
    SULLIVAN, RONOLD ENVgranted 2017-12-29
  2. N7RESactive· G
    Schaefer, Robert EIDgranted 2021-10-05
  3. KK7ANMcancelled· T
    Schaefer, Robert EIDgranted 2021-08-27cancelled 2021-10-05

Successor callsigns

Callsigns held now by people who previously held W7MUT.

  1. N7REScancelled· G
    SULLIVAN, RONOLD ENVgranted 2016-08-09cancelled 2017-12-29
← Back to W7MUT License history →