AreaCode.org is an area code finder with detailed information on the 601 area code including 601 area code map. Major cities like Hattiesburg within area code 601 are also listed on this page. More area codes, including those outside of Mississippi, are found on the AreaCode.org homepage.01 Area Code 601. At AreaCode.org, you'll find helpful information on the 601 area code, including 601 area code location. Other phone area codes may be found using AreaCode.org's area code locator. Use the search function for area code look up.