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

W7NKR callsign genealogy

Currently held by SCHAEFER JR, RALPH G

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 W7NKR's current licensee, walking backwards.

  1. NA9Ractive· E
    Shea, Adam MWIgranted 2018-07-10
  2. AC9QPcancelled· E
    Shea, Adam MWIgranted 2017-05-19cancelled 2018-07-10

Successor callsigns

Callsigns held now by people who previously held W7NKR.

  1. W7BKRcancelled· E
    Hays, Christopher BTXgranted 2016-07-19cancelled 2016-08-20
  2. NA9Rcancelled· E
    Hays, Christopher BTXgranted 2016-01-23cancelled 2016-02-13

All historical holders

Every license row we've seen with the callsign W7NKR, oldest first.

  • SCHAEFER JR, RALPH G WY
    1995-04-22 → cancelled 2007-04-24
  • Hays, Christopher B TX
    2015-12-26 → cancelled 2016-01-23
  • Hays, Christopher B TX
    2016-06-21 → cancelled 2016-07-19
← Back to W7NKR License history →