We will promptly address questions about your service. Call us toll-free for matters regarding customer care, billing, sales, or maintenance at the following numbers: Customer Care – Business 1.800.876.9823 | firstname.lastname@example.org Service Associates are available 24 hours a day, 7 days a week for billing inquiries, technical or repair issues, moves, and other service matters. Customer Care – Residential 1.877.638.8351 For repair or maintenance issues, call 24 hours a day, 7 days a week. For billing inquiries, moves, and service-related questions, Service Associates are available during business hours (8 to 7 EST, Monday – Friday; 9 to 5 EST Saturday andSunday). Repair – Advanced Voice and Data Services 1.866.312.0911 Our Network Operations Center is available 24 hours a day, 7 days a week to address repair or technical issues for DSL and Internet T1 Access Services, ISDN PRI, Digital PBX, MPLS, Integrated Voice and Data Services and VoIP Services.