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

W5OKI callsign genealogy

Currently held by CALHOUN, STEPHEN L

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 W5OKI's current licensee, walking backwards.

  1. K0KCCcancelled· G
    POWELL II, KENNETH AOKgranted 2005-04-19cancelled 2015-03-24
  2. W5CANactive· T
    NAZARIO, CARLOS ATXgranted 2020-11-17
  3. KF5IFScancelled· T
    NAZARIO, CARLOS ATXgranted 2010-08-17cancelled 2011-01-14

Successor callsigns

Callsigns held now by people who previously held W5OKI.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W5OKI, oldest first.

  • CALHOUN, STEPHEN L CA
    1997-10-16 → cancelled 2009-10-17
  • POWELL II, KENNETH A OK
    2015-03-24 active
← Back to W5OKI License history →