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

KO0W

Active

Bertsch, Steven J

Location: Rosemount, MN
Class: Amateur Extra
Granted: 2026-02-10
Expires: 2036-03-24
Previous call: KC0WAD
FRN: 0014691711

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Vanity availability

Held

Currently held

KO0W 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

KC0WADcancelled· E
Bertsch, Steven JMNgranted 2006-02-24cancelled 2006-03-24

Prior holders later became

N0KNactive· E
BAKER, KENNETH JKSgranted 2016-12-02

License history

0 events

No recorded events.

More vanity slots coming available

From Minnesota

All →

AB0UX 2026-09-10
KD0TBF 2026-09-10
KD5TUA 2026-09-11
N0SRJ 2026-09-14
KC0OBE 2026-09-15

Starting with KO0

All →

KO0MD CA · 2027-08-05

Full history → Vanity availability → Callsign genealogy →