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

KM4YRT callsign genealogy

Currently held by Alayon, Joshua R

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 KM4YRT's current licensee, walking backwards.

  1. W1TEScancelled· T
    Alayon, Joshua RFLgranted 2016-11-19cancelled 2016-12-20

Successor callsigns

Callsigns held now by people who previously held KM4YRT.

  1. N1POactive· E
    Alayon, Joshua RFLgranted 2024-07-12
  2. W1TEScancelled· T
    Alayon, Joshua RFLgranted 2016-11-19cancelled 2016-12-20

All historical holders

Every license row we've seen with the callsign KM4YRT, oldest first.

  • Alayon, Joshua R FL
    2016-11-01 → cancelled 2016-11-19
  • Alayon, Joshua R FL
    2016-12-20 → cancelled 2024-07-12
← Back to KM4YRT License history →