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

W7YQ callsign genealogy

Currently held by SHEFFIELD, ALAN JEROME

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 W7YQ's current licensee, walking backwards.

  1. KF5UHXcancelled· E
    SHEFFIELD, ALAN JMSgranted 2013-03-13cancelled 2015-01-09

Successor callsigns

Callsigns held now by people who previously held W7YQ.

  1. AB7SSactive· E
    ANDERSON, JAMES DCOgranted 2021-11-15
  2. KW6RLcancelled· E
    LO GRASSO, ROBERT CCAgranted 2003-12-30cancelled 2004-05-07

All historical holders

Every license row we've seen with the callsign W7YQ, oldest first.

  • MOORE, CARL W AZ
    1995-03-08 → cancelled 1998-04-13
  • ANDERSON, JAMES D WA
    2000-07-24 → cancelled 2000-12-27
  • LO GRASSO, ROBERT C CA
    2003-02-15 → cancelled 2003-12-30
  • LINDGREN, TIMOTHY A NV
    2006-01-27 → cancelled 2012-12-19
  • SHEFFIELD, ALAN JEROME MS
    2025-09-18 active
← Back to W7YQ License history →