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

KC7JAM callsign genealogy

Currently held by JAMISON, 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 KC7JAM's current licensee, walking backwards.

  1. KE0JPDcancelled· T
    Jamison, Christopher RORgranted 2016-06-15cancelled 2016-07-12

Successor callsigns

Callsigns held now by people who previously held KC7JAM.

  1. WA7JMactive· E
    Cook, Gerald EWAgranted 2018-03-07
  2. W7BFGactive· G
    JAMISON, CHRISTOPHER RARgranted 2018-01-09

All historical holders

Every license row we've seen with the callsign KC7JAM, oldest first.

  • Cook, Gerald E WA
    2005-01-25 → cancelled 2008-04-23
  • JAMISON, CHRISTOPHER R OR
    2016-07-12 → cancelled 2018-01-09