C Spire is a regional telecommunications and technology company offering wireless service, home fiber internet, TV, phone, and business technology services. If you need help with a C Spire bill, account login, wireless phone, home fiber service, outage, store visit, or business account, use the customer service options below to reach the correct department.

C Spire Customer Service Phone Numbers

Wireless Support: 1-855-CSPIRE5 / 1-855-277-4735 — available 24 hours a day
Text Support: Text 611 from a C Spire phone
Home Fiber Support: 1-855-GET100X / 1-855-438-1009 — available 24 hours a day

Wireless Sales: 1-855-9CSPIRE / 1-855-927-7473
Business and Government Sales & Support: 1-855-277-4732

Best Ways to Contact C Spire

The best way to reach C Spire depends on whether you have wireless service, home fiber service, or a business account.

Wireless account or phone issue: Call 1-855-277-4735 or text 611 from your C Spire phone.
Home fiber internet, TV, or home phone issue: Call 1-855-438-1009.

New wireless sales: Call 1-855-927-7473.
Business or government service: Call 1-855-277-4732.
Store visit: Use the official C Spire store locator to find a nearby retail location.

You can also use the official C Spire Contact Us page, the C Spire Wireless Support page, the C Spire Home Services Support page, or the C Spire Business Support page.

C Spire Mailing Addresses

Bill Payment Address: C Spire, PO Box 519, Meadville, MS 39653

Corporate Mail Address: C Spire, 1018 Highland Colony Parkway, Suite 300, Ridgeland, MS 39157

Before You Contact C Spire Customer Service

Having the right information ready can help C Spire route your call faster and reduce repeat troubleshooting steps.

Your C Spire account number, phone number, or service address

The name and email address on the account
The device, modem, router, or service type you are calling about
Any error messages, outage notices, or speed-test results
A copy of the bill or charge you are questioning
Dates and times of dropped calls, slow internet, service outages, or support contacts

Common Reasons Customers Contact C Spire

Wireless billing, plan changes, upgrades, or account questions
Phone activation, SIM/eSIM setup, device troubleshooting, or warranty questions
Home fiber internet outages, slow speeds, Wi-Fi coverage, or equipment issues
C Spire TV, home phone, or streaming service questions
Business internet, cloud, voice, managed IT, or cybersecurity support
Payment questions, late fees, account balances, or online account access
Store appointment, device trade-in, return, or order status help

C Spire Wireless Support

For wireless customers, C Spire support can help with plan questions, mobile data, device activation, voicemail, roaming, international service, trade-ins, billing, and account access. Calling from the phone on the account or texting 611 may help C Spire identify the line more quickly.

C Spire Home Fiber Support

For home fiber customers, C Spire support can help with internet outages, Wi-Fi speed concerns, router or equipment questions, C Spire TV, home phone service, online account management, and payments. If your internet is down, check whether the issue affects all devices or only one device before calling.

C Spire Business Support

C Spire Business customers should use the business support number for help with business internet, voice, managed IT, cloud services, Microsoft 365, data center services, cybersecurity, and business account billing. Business customers may need their company account details or administrator login information before support can make account changes.

Account, Billing, and Payment Tips

If you are calling about a bill, compare the current statement with your previous statement before contacting C Spire. Price changes can sometimes be caused by plan changes, device payment plans, taxes and fees, promotions ending, equipment charges, late fees, or added services.

For payment questions, use the official C Spire website, the My C Spire app, or the published payment address. Avoid sending payment information through social media, public comments, or any unofficial website.

Safety and Privacy Tips

Do not post your C Spire account number, phone number, service address, password, payment information, PIN, or security code in a public review or comment. If someone contacts you claiming to be from C Spire and asks for payment by gift card, cryptocurrency, wire transfer, or a suspicious link, verify the request directly through the official C Spire website or phone number.

C Spire Reviews and Complaints on CustomerServiceNumbers.com

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C Spire Customer Service Phone Number, Support and Reviews