uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

W9OKA callsign genealogy

Currently held by Clemens Sr, Thomas 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 W9OKA's current licensee, walking backwards.

  1. KB3IPOcancelled
    W9OKA Antenna AssociationPAgranted 2002-10-02cancelled 2003-04-18

Successor callsigns

Callsigns held now by people who previously held W9OKA.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W9OKA, oldest first.

  • Clemens Sr, Thomas G PA
    1999-12-07 → cancelled 2002-06-15
  • W9OKA Antenna Association PA
    2013-01-30 → cancelled 2025-04-19