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

KL1MH callsign genealogy

Currently held by Thomas, Trevor 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 KL1MH's current licensee, walking backwards.

  1. KL1MJHcancelled· T
    Hall, Martin JAKgranted 2016-04-26cancelled 2016-06-03
  2. KL1DEcancelled· T
    Hall, Martin JAKgranted 2011-04-22cancelled 2016-04-26

Successor callsigns

Callsigns held now by people who previously held KL1MH.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KL1MH, oldest first.

  • Thomas, Trevor W AK
    2003-05-07 → cancelled 2015-05-08
  • Hall, Martin J AK
    2016-06-03 active