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

K1ERP callsign genealogy

Currently held by Arenella, Robert 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 K1ERP's current licensee, walking backwards.

  1. N2OAMcancelled· A
    Arenella, Robert JNYgranted 2013-03-22cancelled 2021-09-10

Successor callsigns

Callsigns held now by people who previously held K1ERP.

  1. K1EROactive· T
    Halpin, Ruth FNHgranted 2026-01-15

All historical holders

Every license row we've seen with the callsign K1ERP, oldest first.

  • Halpin, Ruth F NH
    2011-07-19 → cancelled 2016-01-29
  • Arenella, Robert J NH
    2021-09-10 active
← Back to K1ERP License history →