<page_title> List of Ohio area codes </page_title> <table> <cell> 513 <col_header> Code </col_header> <col_header> 216 </col_header> <col_header> 220 </col_header> <col_header> 234 </col_header> <col_header> 326 </col_header> <col_header> 330 </col_header> <col_header> 380 </col_header> <col_header> 419 </col_header> <col_header> 440 </col_header> </cell> <cell> Southwest Ohio including Cincinnati (October 1947) <col_header> Region </col_header> <row_header> 513 </row_header> <row_header> 1947 </row_header> </cell> </table>
The area code of Cincinnati/Southwest Ohio is 513.