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

W9OB callsign genealogy

Currently held by Henry County Amat Radio Club

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 W9OB's current licensee, walking backwards.

  1. KC9TOZcancelled
    Henry County Amateur Radio ClubINgranted 2011-01-31cancelled 2011-03-29

Successor callsigns

Callsigns held now by people who previously held W9OB.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W9OB, oldest first.

  • Zombolas, John N IL
    2000-09-12 → cancelled 2009-04-27
  • Henry County Amat Radio Club IN
    2021-02-03 active
← Back to W9OB License history →