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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

W2GM callsign genealogy

Currently held by SUGARMAN, MARK C

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 W2GM's current licensee, walking backwards.

  1. N2OPNcancelled· E
    SUGARMAN, MARK CNJgranted 2001-10-10cancelled 2011-01-25

Successor callsigns

Callsigns held now by people who previously held W2GM.

  1. K5YWcancelled· E
    Watanabe, YukihiroMIgranted 2009-01-06cancelled 2009-07-10

All historical holders

Every license row we've seen with the callsign W2GM, oldest first.

  • BARNES, WILLIAM J NY
    1997-08-07 → cancelled 2002-11-07
  • Watanabe, Yukihiro MI
    2008-04-22 → cancelled 2009-01-06
  • SUGARMAN, MARK C NJ
    2020-11-25 active
← Back to W2GM License history →