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

W9JSW callsign genealogy

Currently held by Williams, John S

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 W9JSW's current licensee, walking backwards.

  1. AC9HYcancelled· E
    Williams, John SILgranted 2008-02-07cancelled 2015-04-21
  2. KE5SSHcancelled· E
    Williams, John SILgranted 2008-02-07cancelled 2014-04-16

Successor callsigns

Callsigns held now by people who previously held W9JSW.

No current licensee on record previously held this callsign.

← Back to W9JSW License history →