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

KL7OO callsign genealogy

Currently held by OAKLEY, ROSS W

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 KL7OO's current licensee, walking backwards.

  1. W7ROScancelled· G
    OAKLEY, ROSS WAKgranted 2007-10-18cancelled 2013-07-30
  2. NL7WLcancelled· P
    OAKLEY, ROSS Wcancelled 1998-01-07

Successor callsigns

Callsigns held now by people who previously held KL7OO.

  1. W7IVactive· E
    MERRILL, PAUL FNHgranted 2020-03-18

All historical holders

Every license row we've seen with the callsign KL7OO, oldest first.

  • MERRILL, PAUL F WA
    2003-06-17 → cancelled 2010-05-14
  • OAKLEY, ROSS W GA
    2023-05-31 active