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

N4NUM callsign genealogy

Currently held by PEPPER, ROBERT E

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 N4NUM's current licensee, walking backwards.

  1. N1NUMactive· G
    PEPPER, ROBERT ESCgranted 2023-09-29

Successor callsigns

Callsigns held now by people who previously held N4NUM.

  1. N1NUMactive· G
    PEPPER, ROBERT ESCgranted 2023-09-29
  2. N1NUMcancelled· G
    PEPPER, ROBERT ESCgranted 2016-11-15cancelled 2017-02-22

All historical holders

Every license row we've seen with the callsign N4NUM, oldest first.

  • MAZZA, DANIEL V FL
    1988-11-15 → cancelled 2000-11-16
  • PEPPER, ROBERT E SC
    2013-08-09 → cancelled 2016-11-15
  • PEPPER, ROBERT E SC
    2017-02-22 → cancelled 2023-09-29
← Back to N4NUM License history →