• Try this code

    select house_no from YourTable

    where house_no between '4-12-1000' and'4-12-1500'

    AND ISNUMERIC(SUBSTRING(house_NO,6,4))=1

    and CONVERT(INT,SUBSTRING(house_NO,6,4)) BETWEEN 1000 AND 1500

    Regards

    IgorMi

    Igor Micev,My blog: www.igormicev.com