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

AC7S callsign genealogy

Currently held by Laybourne, John 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 AC7S's current licensee, walking backwards.

  1. W8WOMcancelled· E
    Laybourne, John RORgranted 2012-09-25cancelled 2019-03-05
  2. KF7YJQcancelled· T
    Laybourne, John RORgranted 2012-08-31cancelled 2012-09-25

Successor callsigns

Callsigns held now by people who previously held AC7S.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign AC7S, oldest first.

  • COFFIN, STEPHEN M UT
    2006-11-29 → cancelled 2019-02-13
  • Laybourne, John R OR
    2019-03-05 active