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

K4NBC callsign genealogy

Currently held by Calvert, Robert J

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 K4NBC's current licensee, walking backwards.

  1. KW4YEcancelled· E
    ORAMA, MIGUELFLgranted 2016-03-11cancelled 2016-11-26
  2. WZ1Yactive· E
    DI PALO, JACK FKSgranted 2018-10-19
  3. KE0NLLcancelled· E
    DI PALO, JACK FKSgranted 2017-05-22cancelled 2018-10-19

Successor callsigns

Callsigns held now by people who previously held K4NBC.

  1. WC2Factive· E
    ORAMA, MIGUELFLgranted 2019-11-16

All historical holders

Every license row we've seen with the callsign K4NBC, oldest first.

  • Calvert, Robert J FL
    2010-11-20 → cancelled 2014-09-21
  • ORAMA, MIGUEL FL
    2016-11-26 → cancelled 2019-11-16
  • BRAFFORD, MELVIN G
    — → cancelled 1997-08-07
← Back to K4NBC License history →