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

W0WHO

Cancelled

UNDERWOOD, WARREN W

Location: SAINT CHARLES, MO
Class: General
Granted: 2017-11-17
Expires: 2027-11-17
Previous call: N0IAU
FRN: 0004702684

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Vanity availability

577d

Available on 2028-04-09

W0WHO cancelled on 2026-04-10. Hold ends in 577 days.

Last held by UNDERWOOD, WARREN W (MO).

Confidence: High

Cancelled licenses begin the 2-year hold immediately on the cancellation date, so this is the firm release date per §97.19.

Callsign genealogy

Previously held by current licensee

N0IAUcancelled· T
UNDERWOOD, WARREN WMOgranted 2017-09-20cancelled 2017-11-17

Prior holders later became

KF0WYUactive· G
UNDERWOOD, WARREN WMOgranted 2017-11-17

License history

0 events

No recorded events.

More vanity slots coming available

From Missouri

KD0TBI 2026-09-11
KD0TBJ 2026-09-11
KD0TBK 2026-09-11
KD0TBL 2026-09-11
KD0TBM 2026-09-11

Starting with W0

W0GAB MO · 2026-09-16
W0SCL CO · 2026-09-17
W0DMY KS · 2026-09-20
W0CVF CO · 2026-09-23
W0KLD MO · 2026-09-24

Full history → Vanity availability → Callsign genealogy →