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

KA4LPH callsign genealogy

Currently held by Geiss, Damian P

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 KA4LPH's current licensee, walking backwards.

  1. AC7RGcancelled· E
    Geiss, Damian PAZgranted 2009-09-09cancelled 2010-10-19

Successor callsigns

Callsigns held now by people who previously held KA4LPH.

  1. K7LPHcancelled· E
    Geiss, Damian PNCgranted 2021-10-30cancelled 2024-01-26
  2. AC7RGcancelled· E
    Geiss, Damian PAZgranted 2009-09-09cancelled 2010-10-19

All historical holders

Every license row we've seen with the callsign KA4LPH, oldest first.

  • Geiss, Damian P AZ
    1999-10-23 → cancelled 2002-02-25
  • Geiss, Damian P NC
    2020-07-23 → cancelled 2021-10-30
← Back to KA4LPH License history →