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

N1YBT callsign genealogy

Currently held by MESSIER, ROBERT B

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 N1YBT's current licensee, walking backwards.

  1. KC1EXEactive· T
    Sanderson, Ryan QVTgranted 2022-03-18
  2. KC1QNJcancelled· T
    Sanderson, Ryan QVTgranted 2022-02-28cancelled 2022-03-18

Successor callsigns

Callsigns held now by people who previously held N1YBT.

  1. K1RBMactive· G
    MESSIER, ROBERT BVTgranted 2022-12-24
  2. KC1EXEcancelled· T
    MESSIER, ROBERT BVTgranted 2016-09-10cancelled 2018-12-28

All historical holders

Every license row we've seen with the callsign N1YBT, oldest first.

  • MESSIER, ROBERT B VT
    2006-08-22 → cancelled 2016-01-05
  • MESSIER, ROBERT B VT
    2018-12-28 → cancelled 2022-12-24
← Back to N1YBT License history →