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

AC4UK callsign genealogy

Currently held by SHANKLE, HENRY M

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 AC4UK's current licensee, walking backwards.

  1. W4UKCcancelled· E
    COUCH, JOSEPH AVAgranted 2020-06-23cancelled 2021-03-23
  2. KC4SWCcancelled· G
    COUCH, JOSEPH AVAgranted 2020-06-11cancelled 2020-06-23

Successor callsigns

Callsigns held now by people who previously held AC4UK.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign AC4UK, oldest first.

  • SHANKLE, HENRY M FL
    1992-08-18 → cancelled 2004-08-19
  • COUCH, JOSEPH A VA
    2021-03-23 active