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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

N6UM callsign genealogy

Currently held by HARPER, KENT F

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 N6UM's current licensee, walking backwards.

  1. N5ACEcancelled· E
    Rumyantsev, MaxymPAgranted 2020-07-17cancelled 2024-09-07
  2. KD2UCZcancelled· T
    Rumyantsev, MaxymNJgranted 2020-06-29cancelled 2020-07-17

Successor callsigns

Callsigns held now by people who previously held N6UM.

  1. W6VJactive· E
    Williams, Victor JMSgranted 2022-08-19
  2. K6YYactive· E
    ICHWAN, JUSWANCAgranted 2019-09-24

All historical holders

Every license row we've seen with the callsign N6UM, oldest first.

  • HARPER, KENT F CA
    2007-04-18 → cancelled 2019-04-19
  • ICHWAN, JUSWAN CA
    2019-05-07 → cancelled 2019-09-24
  • Williams, Victor J MS
    2021-10-15 → cancelled 2022-08-19
  • Rumyantsev, Maxym NJ
    2024-09-07 active
← Back to N6UM License history →