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

KB7JWS callsign genealogy

Currently held by DOUGLAS, CLAYTON L

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 KB7JWS's current licensee, walking backwards.

  1. KF7JIOcancelled· G
    SPERRY, JOHN WMTgranted 2010-02-11cancelled 2010-05-11
  2. KF7HNMcancelled· G
    SPERRY, JOHN WMTgranted 2010-02-11cancelled 2010-04-21

Successor callsigns

Callsigns held now by people who previously held KB7JWS.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KB7JWS, oldest first.

  • DOUGLAS, CLAYTON L AZ
    1990-03-13 → cancelled 2002-03-14
  • SPERRY, JOHN W MT
    2020-03-24 active
← Back to KB7JWS License history →