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

N1MBR callsign genealogy

Currently held by BROMBACK, JOHN 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 N1MBR's current licensee, walking backwards.

  1. KC1EKGcancelled
    Mo Betta Radio Research GroupCTgranted 2015-09-16cancelled 2016-06-24

Successor callsigns

Callsigns held now by people who previously held N1MBR.

  1. K1SOCcancelled
    Second Class Operators ClubCTgranted 2019-09-17cancelled 2020-12-29

All historical holders

Every license row we've seen with the callsign N1MBR, oldest first.

  • BROMBACK, JOHN J MA
    2002-01-24 → cancelled 2014-04-22
  • Mo Betta Radio Research Group CT
    2016-06-24 → cancelled 2019-09-17
← Back to N1MBR License history →