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

KE4STB callsign genealogy

Currently held by Imhoff, Donald J

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 KE4STB's current licensee, walking backwards.

  1. W4FFGcancelled· T
    IMHOFF, DONALD JKYgranted 2003-06-20cancelled 2004-01-23

Successor callsigns

Callsigns held now by people who previously held KE4STB.

  1. K4FMZcancelled· G
    Imhoff, Donald JTXgranted 2007-12-18cancelled 2016-03-11
  2. W4FFGcancelled· T
    IMHOFF, DONALD JKYgranted 2003-06-20cancelled 2004-01-23

All historical holders

Every license row we've seen with the callsign KE4STB, oldest first.

  • IMHOFF, DONALD J KY
    1994-11-15 → cancelled 2003-06-20
  • Imhoff, Donald J FL
    2004-01-23 → cancelled 2007-12-18
← Back to KE4STB License history →