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

NT1M callsign genealogy

Currently held by VAN LOENDERSLOOT, JOHN N

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 NT1M's current licensee, walking backwards.

  1. K1LYVcancelled· E
    VAN LOENDERSLOOT, JOHN NNHgranted 2021-07-15cancelled 2022-04-05
  2. WP4LYVcancelled· G
    VAN LOENDERSLOOT, JOHN NNHgranted 1994-10-05cancelled 2000-11-21

Successor callsigns

Callsigns held now by people who previously held NT1M.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign NT1M, oldest first.

  • ANDERSON, ARTHUR W MA
    2010-03-16 → cancelled 2022-03-17
  • VAN LOENDERSLOOT, JOHN N FL
    2022-04-05 active
← Back to NT1M License history →