uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

K8MDW callsign genealogy

Currently held by DeWitt, Matthew O

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 K8MDW's current licensee, walking backwards.

  1. KE8MTBcancelled· T
    DeWitt, Matthew OMIgranted 2019-08-12cancelled 2019-08-31

Successor callsigns

Callsigns held now by people who previously held K8MDW.

  1. K4UMTcancelled
    Saint Tikhon's Seminary Radio ClubPAgranted 2004-12-11cancelled 2010-09-28

All historical holders

Every license row we've seen with the callsign K8MDW, oldest first.

  • Five Watt Radio Society OH
    2004-08-03 → cancelled 2004-12-11
  • DeWitt, Matthew O MI
    2019-08-31 active
← Back to K8MDW License history →