Family Support Registry
P. O. Box 2171
Denver, CO 80201-2171
Non-custodial Parent
Metro Denver: 303-299-9123
Nationwide: 1-800-374-6558
E-mail: cdhs_fsrcustomerservice@state.co.us
FSR Employer Services
Metro Denver: 303-297-2849
Nationwide: 1-800-696-1468
E-mail: cdhs_fsremployerservices@state.co.us
Note: All questions related to a child support case should be directed to your local child support office.