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Confidence: Medium · Source: FCC ULS · As of 2026-09-10

W3MDM

Expired

SEABERG, ROBERT W

Location
WHEATON, IL
Class
Amateur Extra
Granted
2007-06-12
Expires
2017-07-25
FRN
0005010905
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Vanity availability

Unknown

Status unknown

No vanity-slot record on file for W3MDM. Either it has never been issued, is currently held by an active license, or hasn't been re-computed since its last freeing event.

Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).

Callsign genealogy

Full chain →

Previously held by current licensee

  1. KN4IWRactive· E
    Waldorf, Ivan RNCgranted 2026-02-18
  2. KN4UULcancelled· T
    Waldorf, Ivan RNCgranted 2019-05-28cancelled 2026-02-18

License history

0 events

No recorded events.

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