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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KR5F callsign genealogy

Currently held by LAIRD, EARNEST 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 KR5F's current licensee, walking backwards.

  1. N5KPRcancelled· E
    ROTHFIELD MD, KENNETH PTXgranted 2026-04-25cancelled 2026-05-19
  2. AJ5BDcancelled· E
    ROTHFIELD, KENNETH PTXgranted 2026-04-07cancelled 2026-04-25

Successor callsigns

Callsigns held now by people who previously held KR5F.

  1. K1NTcancelled· E
    LAIRD, EARNEST LTXgranted 2002-03-08cancelled 2003-05-10

All historical holders

Every license row we've seen with the callsign KR5F, oldest first.

  • LAIRD, EARNEST L TX
    1997-04-17 → cancelled 2002-03-08
  • ROSENBERG, KEVIN M NM
    2014-01-22 → cancelled 2026-04-07
  • ROTHFIELD, KENNETH P TX
    2026-05-19 active
← Back to KR5F License history →