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

KF0JB callsign genealogy

Currently held by TILLS, JAMES W

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 KF0JB's current licensee, walking backwards.

  1. W6BLOcancelled· E
    BLOME, JONATHON SCOgranted 2008-10-28cancelled 2017-10-17
  2. KI6TLMcancelled· T
    Blome, Jonathon SCAgranted 2008-10-07cancelled 2008-10-28

Successor callsigns

Callsigns held now by people who previously held KF0JB.

  1. W7JWTactive· E
    TILLS, JAMES WWAgranted 2022-03-22
  2. NX0Hactive· E
    Blome, Jon SMIgranted 2021-11-02

All historical holders

Every license row we've seen with the callsign KF0JB, oldest first.

  • TILLS, JAMES W NE
    2009-12-15 → cancelled 2012-06-19
  • BLOME, JONATHON S CO
    2017-10-17 → cancelled 2021-11-02
← Back to KF0JB License history →