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

AA4BP callsign genealogy

Currently held by CARROLL, MICHAEL E

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 AA4BP's current licensee, walking backwards.

  1. KK4WZNcancelled· E
    Powers, William BTNgranted 2014-02-07cancelled 2014-05-09

Successor callsigns

Callsigns held now by people who previously held AA4BP.

  1. N4MCactive· E
    CARROLL, MICHAEL EVAgranted 2019-10-29
  2. AI4SYactive· E
    PALMER JR, WILLIAM JALgranted 2019-04-02

All historical holders

Every license row we've seen with the callsign AA4BP, oldest first.

  • CARROLL, MICHAEL E AL
    1998-01-23 → cancelled 1999-10-26
  • PALMER JR, WILLIAM J AL
    2008-02-01 → cancelled 2009-05-27
  • Powers, William B CA
    2024-07-17 active
← Back to AA4BP License history →