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

KC7RR callsign genealogy

Currently held by Mittelstadt, William A

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 KC7RR's current licensee, walking backwards.

  1. KB7MATcancelled· E
    RICHINS, MATTHEW BAZgranted 2016-10-18cancelled 2021-08-14
  2. N7QKTcancelled· G
    Richins, Matthew BAZgranted 2001-02-20cancelled 2007-01-04
  3. KB0AEA
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held KC7RR.

  1. W7KPOactive· A
    Mittelstadt, William AWAgranted 2018-10-23

All historical holders

Every license row we've seen with the callsign KC7RR, oldest first.

  • Mittelstadt, William A OR
    2006-10-31 → cancelled 2009-01-10
  • RICHINS, MATTHEW B AZ
    2021-08-14 active
← Back to KC7RR License history →