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

W0ISF

Active

Mease, Mark G

Location: Truro, IA
Class: Amateur Extra
Granted: 2018-07-27
Expires: 2028-07-27
Previous call: KC0KPX
FRN: 0004710828

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Vanity availability

Held

Currently held

W0ISF is held by an active license; it isn't a vanity slot right now.

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

KC0KPXcancelled· E
Mease, Mark GIAgranted 2001-05-07cancelled 2008-07-01

License history

0 events

No recorded events.

More vanity slots coming available

From Iowa

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KD0TDT 2026-09-20
KC0ODH 2026-09-24

Starting with W0

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W0DMY KS · 2026-09-20
W0CVF CO · 2026-09-23

Full history → Vanity availability → Callsign genealogy →