uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

W7DUP callsign genealogy

Currently held by Denson, Matthew E

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 W7DUP's current licensee, walking backwards.

  1. AE6UPcancelled· E
    Denson, Matthew EWAgranted 2013-12-02cancelled 2020-10-16
  2. KG6UADcancelled· E
    Denson, Matthew ECAgranted 2004-02-27cancelled 2005-06-22

Successor callsigns

Callsigns held now by people who previously held W7DUP.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W7DUP, oldest first.

  • SCHNURLE, ALVIN H ID
    1996-06-04 → cancelled 2008-06-05
  • Denson, Matthew E WA
    2020-10-16 active
← Back to W7DUP License history →