Below we provide the Mississippi child support office phone number and online website. The Child Support Enforcement agency in Mississippi can help you establish and enforce a child support order as well as help establish paternity, collect unpaid child support payments and locate non-custodial parents. If you are looking to collect child support payments then contact the child support office in MS below, where you can file a complaint. The age of emancipation in Mississippi is 21. The MS statute of limitation is 7 years after emancipation. Please note this site is for informational purposes only, do not use for legal advice.