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

K0RIO callsign genealogy

Currently held by SCHLENK, EARL J

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 K0RIO's current licensee, walking backwards.

  1. KC0RIOcancelled· T
    CRANFILL, BRENTCOgranted 2019-07-13cancelled 2019-09-21
  2. KD5HLAcancelled· T
    CRANFILL, BRENTCOgranted 2019-06-25cancelled 2019-07-13

Successor callsigns

Callsigns held now by people who previously held K0RIO.

  1. W0ESactive· E
    SCHLENK, EARL JMOgranted 2019-02-05

All historical holders

Every license row we've seen with the callsign K0RIO, oldest first.

  • NEIL 596, LUTHER L CO
    2016-02-09 active
  • SCHLENK, EARL J
    — → cancelled 1999-04-21
← Back to K0RIO License history →