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

AG4BC callsign genealogy

Currently held by CRUDER, MARK 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 AG4BC's current licensee, walking backwards.

  1. W4SOUactive· G
    Southworth Sr, Spencer WVAgranted 2019-03-05
  2. KM4JVFcancelled· G
    Southworth, Spencer WVAgranted 2015-04-16cancelled 2019-03-05

Successor callsigns

Callsigns held now by people who previously held AG4BC.

  1. N4SEXactive· E
    CRUDER, MARK AFLgranted 2020-07-21

All historical holders

Every license row we've seen with the callsign AG4BC, oldest first.

  • CRUDER, MARK A FL
    1999-12-09 → cancelled 2000-08-22
  • Clark, Brian N KY
    2020-06-09 active
← Back to AG4BC License history →