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

KT4M callsign genealogy

Currently held by Flack, Robert 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 KT4M's current licensee, walking backwards.

  1. KK4PBBcancelled· E
    WHELAN, ANDREW ENCgranted 2007-02-08cancelled 2016-04-29
  2. KC8TBTcancelled· T
    WHELAN, ANDREW ENCgranted 2007-02-08cancelled 2013-03-05
  3. KB9PQYcancelled· T
    WHELAN, ANDREW EMIgranted 1997-02-26cancelled 2002-02-14

Successor callsigns

Callsigns held now by people who previously held KT4M.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KT4M, oldest first.

  • Flack, Robert W GA
    2004-04-19 → cancelled 2014-04-09
  • WHELAN, ANDREW E NC
    2026-03-03 active
← Back to KT4M License history →