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

N9JMG callsign genealogy

Currently held by JOPPA-MAPLE GROVE HIGH SCHOOL RADIO CLUB

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 N9JMG's current licensee, walking backwards.

  1. KD9NRLcancelled
    JOPPA-MAPLE GROVE HIGH SCHOOL RADIO CLUBILgranted 2019-08-14cancelled 2019-09-10

Successor callsigns

Callsigns held now by people who previously held N9JMG.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N9JMG, oldest first.

  • OSTROM, GREGORY R IN
    2000-01-08 → cancelled 2012-04-04
  • JOPPA-MAPLE GROVE HIGH SCHOOL RADIO CLUB IL
    2019-09-10 active
← Back to N9JMG License history →