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

K4JLY callsign genealogy

Currently held by PINELLI, EUGENE A

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 K4JLY's current licensee, walking backwards.

  1. KD7VJMcancelled· T
    Haberkost, Mark JFLgranted 2003-04-10cancelled 2007-09-01

Successor callsigns

Callsigns held now by people who previously held K4JLY.

  1. K5JLYexpired· G
    PINELLI, EUGENE ANMgranted 2012-12-08cancelled 2025-03-05
  2. W4JLYexpired· G
    Haberkost, Mark JFLgranted 2009-07-17cancelled 2021-07-20

All historical holders

Every license row we've seen with the callsign K4JLY, oldest first.

  • PINELLI, EUGENE A NM
    2001-06-06 → cancelled 2003-03-04
  • Haberkost, Mark J FL
    2007-09-01 → cancelled 2009-07-17
← Back to K4JLY License history →