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Contact OTHS

Smiley Campus

600 South Smiley Street

O'Fallon, IL 62269

Phone: 618-632-3507

Fax: 618-206-2468

Email: contact@oths.us

Milburn Campus

650 Milburn School Road

O'Fallon, IL 62269

Phone: 618-622-9647

Fax: 618-622-9630

Email: contact@oths.us

Other Inquiries