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

AF1M callsign genealogy

Currently held by KANTER, JONATHAN 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 AF1M's current licensee, walking backwards.

  1. AA4Ycancelled· E
    Fraser, MarkNJgranted 2020-04-17cancelled 2026-06-02
  2. NK4Yactive· E
    SPINGLER, EDWARD CTNgranted 2022-05-06
  3. KO4VLWcancelled· E
    SPINGLER, EDWARD CTNgranted 2021-12-17cancelled 2022-05-06

Successor callsigns

Callsigns held now by people who previously held AF1M.

  1. AA7AIcancelled· E
    KANTER, JON JNVgranted 2024-05-14cancelled 2024-10-04
  2. K1JKcancelled· E
    KANTER, JONATHAN JMAgranted 2006-01-10cancelled 2008-02-29

All historical holders

Every license row we've seen with the callsign AF1M, oldest first.

  • KANTER, JONATHAN J MA
    2004-08-19 → cancelled 2006-01-10
  • KANTER, JON J NV
    2018-01-05 → cancelled 2024-05-14
  • Fraser, Mark NJ
    2026-06-02 active
← Back to AF1M License history →