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

K0TBT

Active

Schaller, Karl P

Location: MENDOTA HEIGHTS, MN
Class: Amateur Extra
Granted: 2023-02-15
Expires: 2033-04-17
Previous call: WB0VZZ
FRN: 0005604848

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Vanity availability

Held

Currently held

K0TBT 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

WB0VZZcancelled· E
Schaller, Karl PMNgranted 2001-08-28cancelled 2002-04-23

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 K0

All →

K0WFI KS · 2026-09-10
K0KDD KS · 2026-09-17
K0BHM KS · 2026-09-20
K0DO MO · 2026-10-09
K0EHN MN · 2026-10-12

Full history → Vanity availability → Callsign genealogy →