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

W0BW callsign genealogy

Currently held by SAPP, GREGORY D

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 W0BW's current licensee, walking backwards.

  1. KI0MWcancelled· E
    SAPP, GREGORY DIAgranted 2021-12-17cancelled 2025-12-16
  2. KI5UOcancelled
    cancelled 1998-04-28

Successor callsigns

Callsigns held now by people who previously held W0BW.

  1. W5KCWactive· E
    Montandon, Robert MKSgranted 2023-11-25

All historical holders

Every license row we've seen with the callsign W0BW, oldest first.

  • Kelley, Robert M IA
    2006-12-29 → cancelled 2019-03-22
  • Montandon, Robert M KS
    2019-04-09 → cancelled 2023-11-25
  • SAPP, GREGORY D IA
    2025-12-16 active
← Back to W0BW License history →