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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

KK5CM callsign genealogy

Currently held by MATHENY, CRAIG W

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 KK5CM's current licensee, walking backwards.

  1. KF6UOZcancelled· E
    MATHENY, CRAIG WLAgranted 2011-01-10cancelled 2016-09-20

Successor callsigns

Callsigns held now by people who previously held KK5CM.

  1. W7WCWactive· A
    WIRSTROM, WILLIAM CWAgranted 2016-06-30

All historical holders

Every license row we've seen with the callsign KK5CM, oldest first.

  • WIRSTROM, WILLIAM C WA
    2003-10-22 → cancelled 2006-08-05
  • MATHENY, CRAIG W LA
    2026-07-15 active
← Back to KK5CM License history →