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

KP4X callsign genealogy

Currently held by OFRAY, WILLIAM M

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 KP4X's current licensee, walking backwards.

  1. KY0Jactive· E
    RAMEY, MARK LCOgranted 2021-04-09
  2. W0LEWcancelled· E
    RAMEY, MARK LCOgranted 2016-01-15cancelled 2021-04-09
  3. K7RMYcancelled· G
    RAMEY, MARK LCOgranted 2009-02-24cancelled 2016-01-15
  4. KC7FXCcancelled· G
    RAMEY, MARK LCOgranted 2004-08-18cancelled 2009-02-24

Successor callsigns

Callsigns held now by people who previously held KP4X.

  1. KG0Ecancelled· E
    OFRAY, WILLIAM MFLgranted 2018-09-28cancelled 2018-12-15

All historical holders

Every license row we've seen with the callsign KP4X, oldest first.

  • RODRIGUEZ SANTIAGO, RAFAEL PR
    1997-05-20 → cancelled 2006-01-06
  • OFRAY, WILLIAM M FL
    2009-01-10 → cancelled 2018-09-28
  • OFRAY, WILLIAM M TN
    2019-03-19 active
← Back to KP4X License history →