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

AA4IO callsign genealogy

Currently held by DALE, KENNETH 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 AA4IO's current licensee, walking backwards.

  1. KK4JDOcancelled· E
    GRAVES, RICHARD MFLgranted 2012-05-08cancelled 2014-07-08

Successor callsigns

Callsigns held now by people who previously held AA4IO.

  1. WW8Cactive· E
    GRAVES, RICHARD MTNgranted 2021-07-07
  2. N2KDcancelled· E
    DALE, KENNETH MFLgranted 1997-08-22cancelled 2001-07-01

All historical holders

Every license row we've seen with the callsign AA4IO, oldest first.

  • GRAVES, RICHARD M TN
    2014-07-08 → cancelled 2021-07-07
  • DALE, KENNETH M
    — → cancelled 1997-08-22
← Back to AA4IO License history →