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

WB4ZCP callsign genealogy

Currently held by WILLIAMS, STEPHEN C

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 WB4ZCP's current licensee, walking backwards.

  1. W0MLactive· E
    Williams, Stephen CCOgranted 2026-06-09

Successor callsigns

Callsigns held now by people who previously held WB4ZCP.

  1. W0MLactive· E
    Williams, Stephen CCOgranted 2026-06-09
  2. K4KScancelled· E
    Williams, Stephen CNCgranted 2019-11-13cancelled 2020-03-03
  3. W0MLcancelled· E
    Williams, Stephen CNCgranted 2016-11-11cancelled 2019-07-16
  4. W1WTFcancelled· E
    Williams, Stephen CARgranted 2007-05-30cancelled 2007-09-11
  5. W4WTFcancelled· A
    WILLIAMS, STEPHEN CSCgranted 2002-11-22cancelled 2003-10-24

All historical holders

Every license row we've seen with the callsign WB4ZCP, oldest first.

  • WILLIAMS, STEPHEN C SC
    1996-11-22 → cancelled 2002-11-22
  • WILLIAMS, STEPHEN C AR
    2003-10-24 → cancelled 2007-05-30
  • Williams, Stephen C CO
    2007-09-11 → cancelled 2016-11-11
  • Williams, Stephen C NC
    2019-07-16 → cancelled 2019-11-13
  • Williams, Stephen C CO
    2024-10-22 → cancelled 2026-06-09
← Back to WB4ZCP License history →