Corporate Offices. Phone: (706) 650-7799. When you call this number, you will hear instructions on how to access CPC's departmental and personnel directory. Fax: (706) 650-9540, Operations / (706) 922-6695, Finance/Billing. Mail: For Operations, Human Resources, Finance, Marketing, or Information Technology: PO Box 1967, Evans, GA 30809. For Billing: PO Box 2510, Evans, GA 30809.