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

AD7M callsign genealogy

Currently held by CRUM, GERALD 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 AD7M's current licensee, walking backwards.

  1. AC7CXcancelled· E
    WHEELWRIGHT, RALPH LUTgranted 1999-03-25cancelled 2000-06-06
  2. KB7YXYcancelled· P
    WHEELWRIGHT, RALPH LUTgranted 1999-03-25cancelled 2000-05-16
  3. KC7TMHcancelled· P
    WHEELWRIGHT, RALPH Lcancelled 1999-03-25

Successor callsigns

Callsigns held now by people who previously held AD7M.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign AD7M, oldest first.

  • CRUM, GERALD R NV
    1988-03-29 → cancelled 2000-03-30
  • WHEELWRIGHT, RALPH L UT
    2020-06-09 active
← Back to AD7M License history →