uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KC0RZR callsign genealogy

Currently held by Miller, Matthew R

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 KC0RZR's current licensee, walking backwards.

  1. KC0SXTcancelled· G
    Miller, Matthew RCOgranted 2003-06-20cancelled 2004-03-30
  2. KC0PPQcancelled· T
    Miller, Matthew RCOgranted 2002-12-13cancelled 2003-06-20
  3. KC0OQDcancelled· T
    Miller, Matthew RCOgranted 2002-12-13cancelled 2003-04-08
  4. KD6JHAcancelled· N
    MILLER, MATTHEW RCOgranted 1992-05-12cancelled 2002-12-13

Successor callsigns

Callsigns held now by people who previously held KC0RZR.

  1. K0FDTactive· G
    Miller, Matthew RCOgranted 2025-04-29
← Back to KC0RZR License history →