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

N0POO callsign genealogy

Currently held by AMBROSE, JOYCE 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 N0POO's current licensee, walking backwards.

  1. KF0MSDcancelled· G
    Rasmussen, William JNEgranted 2023-05-19cancelled 2025-04-01

Successor callsigns

Callsigns held now by people who previously held N0POO.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N0POO, oldest first.

  • AMBROSE, JOYCE L NE
    2011-10-04 → cancelled 2023-10-26
  • Rasmussen, William J NE
    2025-04-01 active