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

W4MU

Cancelled

FORSTER, DONALD E

Location: GRAND JUNCTION, CO
Class: Amateur Extra
Granted: 2007-10-23
Expires: 2018-01-21
FRN: 0017054537

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Vanity availability

Unknown

Status unknown

No vanity-slot record on file for W4MU. 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

K4WRKcancelled· E
KELLEY, WILLIAM RVAgranted 2011-10-26cancelled 2019-10-18
KS4THcancelled· A
KELLEY, WILLIAM RVAgranted 1995-03-29cancelled 2002-01-23
KE4FKI
no FCC ULS record on file

License history

0 events

No recorded events.

More vanity slots coming available

From Colorado

All →

K0RTS 2026-09-09
K7UGT 2026-09-09
W0RMH 2026-09-09
KB7PWB 2026-09-10
KF0RME 2026-09-10

Starting with W4

All →

W4HKO FL · 2026-09-09
W4IDI AL · 2026-09-10
W4YAU TN · 2026-09-10
W4CVH VA · 2026-09-12
W4QDZ NC · 2026-09-13

Full history → Vanity availability → Callsign genealogy →