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

K1OG callsign genealogy

Currently held by OGREN, CHRISTOPHER R

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 K1OG's current licensee, walking backwards.

  1. K1UNOcancelled· E
    Scheer, ChristopherMAgranted 2012-06-22cancelled 2013-06-15
  2. KB1WTAcancelled· E
    Scheer, ChristopherMAgranted 2012-02-17cancelled 2012-06-22

Successor callsigns

Callsigns held now by people who previously held K1OG.

  1. K1CVHactive· E
    OGREN, CHRISTOPHER RNHgranted 2021-03-03

All historical holders

Every license row we've seen with the callsign K1OG, oldest first.

  • OGREN, CHRISTOPHER R NH
    2011-05-04 → cancelled 2011-05-24
  • Scheer, Christopher NH
    2023-05-25 active
← Back to K1OG License history →