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

W7CSR callsign genealogy

Currently held by CHAPMAN, WILLIAM B

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 W7CSR's current licensee, walking backwards.

  1. KI7SSUcancelled
    CHELAN COUNTY VOLUNTEER SEARCH AND RESCUEWAgranted 2017-12-18cancelled 2018-01-17

Successor callsigns

Callsigns held now by people who previously held W7CSR.

  1. W7IQSactive· T
    CHAPMAN, WILLIAM BIDgranted 2021-11-25

All historical holders

Every license row we've seen with the callsign W7CSR, oldest first.

  • CHAPMAN, WILLIAM B ID
    2009-10-09 → cancelled 2012-01-06
  • CHELAN COUNTY VOLUNTEER SEARCH AND RESCUE WA
    2018-01-17 active
← Back to W7CSR License history →