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

WC1A callsign genealogy

Currently held by COHEN, JONATHAN A

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 WC1A's current licensee, walking backwards.

  1. KD2VDUcancelled· E
    Patten, James MNYgranted 2020-11-30cancelled 2022-02-05

Successor callsigns

Callsigns held now by people who previously held WC1A.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign WC1A, oldest first.

  • COHEN, JONATHAN A MA
    2009-12-23 → cancelled 2022-01-19
  • Patten, James M NY
    2022-02-05 active