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

KI6RK callsign genealogy

Currently held by OBrien, Christopher E

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 KI6RK's current licensee, walking backwards.

  1. N6COBcancelled· E
    OBrien, Christopher ECAgranted 2018-10-05cancelled 2022-07-15
  2. K6BVZcancelled· G
    OBrien, Christopher ECAgranted 2018-08-07cancelled 2018-10-05
  3. KM6UQQcancelled· T
    OBrien, Christopher ECAgranted 2018-07-19cancelled 2018-08-07

Successor callsigns

Callsigns held now by people who previously held KI6RK.

  1. K6RTAactive· E
    OBrien, Christopher ECAgranted 2026-07-28

All historical holders

Every license row we've seen with the callsign KI6RK, oldest first.

  • Scripture, Frederick W CA
    2007-01-23 → cancelled 2019-02-12
  • OBrien, Christopher E CA
    2022-07-15 → cancelled 2026-07-28
← Back to KI6RK License history →