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

K4POR callsign genealogy

Currently held by RUSSELL, PETER O

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 K4POR's current licensee, walking backwards.

  1. K1MJPactive· G
    PEARSON, MATTHEW JTXgranted 2024-01-25
  2. KF5ZELcancelled· G
    PEARSON, MATTHEW JTXgranted 2013-11-19cancelled 2013-12-10

Successor callsigns

Callsigns held now by people who previously held K4POR.

  1. K1MJPcancelled· G
    RUSSELL, PETER OFLgranted 2009-01-16cancelled 2011-07-06

All historical holders

Every license row we've seen with the callsign K4POR, oldest first.

  • RUSSELL, PETER O FL
    2008-01-18 → cancelled 2009-01-16
  • RUSSELL, PETER O FL
    2021-06-04 active
← Back to K4POR License history →