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

W2RST callsign genealogy

Currently held by SUTTER, WILLIAM J

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 W2RST's current licensee, walking backwards.

  1. K4RIGactive· G
    Califf Sr, Michael DGAgranted 2020-09-04
  2. KM4ZIMcancelled· G
    Califf Sr, Michael DGAgranted 2016-11-30cancelled 2020-09-04

Successor callsigns

Callsigns held now by people who previously held W2RST.

  1. K4RIGcancelled· A
    SUTTER, WILLIAM JSCgranted 2015-05-08cancelled 2017-04-18

All historical holders

Every license row we've seen with the callsign W2RST, oldest first.

  • SUTTER, WILLIAM J NY
    2011-03-31 → cancelled 2015-05-08
  • SUTTER, WILLIAM J SC
    2017-04-18 active
← Back to W2RST License history →