How do you contact sprint corporate office? The Sprint customer service department can be contacted at 866-275-1411 for questions about mobile service, and 877-877-8748 for questions related to landline service. If you are calling with questions about your Sprint Business account, you may call 800-927-2199.What is the phone number for sprint customer service? Sprint Customer Service Number. Easiest way to contact them by phone is to dial *2 on your Sprint phone or call one of these two numbers: 866-866-7509 or also try 888-211-4727 to get in touch with Sprint phone support. NOTE that if you want to use *2 shotcode, call must originate from Sprint connected mobile phone.What is the customer support number for sprint? The customer support phone number of Sprint is +1-866-805-9890, +1-866-313-6672 (Click phone number to call). The postal and official address, email address and phone number (helpline) of Sprint Service Center and Sprint customer service phone number is given below.What are sprint customer service hours? Sprint Chat Customer Service Hours 6:00 a.m to 11:30 p.m, Central Time, Monday – Friday. 7:00 a.m to 11:30 p.m ,Central Time , Saturday – Sunday.