C Spire Headquarters & Corporate Office

About C Spire

C Spire is a privately held telecommunications and technology company based in Ridgeland, Mississippi. The modern wireless business launched in 1988 as Cellular South, although the company’s telecommunications roots reach back to regional telephone companies established and acquired decades earlier. Cellular South was renamed C Spire in 2011, with the new name reflecting the company’s “Customer Inspired” positioning. Over time, C Spire has expanded from regional wireless service into fiber internet, residential broadband, business technology, cloud, cybersecurity, managed IT, communications, and network services.

C Spire remains a privately owned business rather than a publicly traded telecommunications carrier. The company describes itself as the largest privately held U.S. wireless carrier and a major fiber provider serving Mississippi, Alabama, Tennessee, and broader business markets. C Spire Business also provides technology solutions to business customers across much of the United States, including managed IT, networking, cybersecurity, cloud, and professional services.

A major recent leadership change occurred in 2024 when Suzy Hays became President and CEO effective July 1, 2024, succeeding longtime CEO Hu Meena. Meena moved to Chairman of Telapex, Inc., the holding company associated with C Spire and Franklin Telephone Company. Current official company materials continue to identify Ridgeland as C Spire’s corporate base, and the company has expanded newer services such as 5G Home Internet while continuing fiber and business-technology investment.

C Spire Headquarters & Corporate Office Address

Current Headquarters

C Spire
1018 Highland Colony Parkway, Suite 300
Ridgeland, MS 39157
United States

C Spire’s current official Contact Us and privacy materials identify 1018 Highland Colony Parkway in Ridgeland as its corporate mailing and contact address. The company’s history page also confirms that C Spire relocated its corporate headquarters to Ridgeland in 2007.

Corporate Office

C Spire’s primary corporate operation is based at the same Ridgeland campus. Different C Spire business units and legal notices may use different suite numbers within the Highland Colony Parkway complex, so customers should use the suite shown on the specific notice, bill, agreement, or department instructions they receive.

Mailing Address

For general corporate correspondence

C Spire
1018 Highland Colony Parkway, Suite 300
Ridgeland, MS 39157

For bill payments, the company separately publishes

C Spire
P.O. Box 519
Meadville, MS 39653.

Other Important Address

Certain C Spire Home account correspondence currently uses

1018 Highland Colony Parkway, Suite 340
Ridgeland, MS 39157

Customers should use the address printed on their own bill when mailing payments or account-specific documentation.

Former / Historical Headquarters

C Spire’s earlier wireless operations were based on the Mississippi Gulf Coast when Cellular South launched in 1988. The company officially relocated its corporate headquarters to Ridgeland, Mississippi in 2007, so older Gulf Coast references should not be treated as the current corporate headquarters.

Quick Information

Corporate Phone Number

C Spire does not prominently publish a separate general headquarters switchboard for all corporate inquiries. The main verified wireless support line is 1-855-277-4735.

Customer Service Number

1-855-CSPIRE5 / 1-855-277-4735

Wireless Support is available 24 hours a day.

Corporate Office Address

1018 Highland Colony Parkway, Suite 300, Ridgeland, MS 39157

Headquarters Address

1018 Highland Colony Parkway, Suite 300, Ridgeland, MS 39157

Email

customeradvocacy@cspire.com

This address is published for privacy and customer advocacy matters.

Industry

Telecommunications, Wireless, Fiber Internet, Managed IT, Cloud, Cybersecurity and Business Technology

Founded

The modern wireless company launched in 1988 as Cellular South. C Spire’s broader telecommunications roots extend further back through predecessor telephone companies.

Number of Employees

Recent company materials have described C Spire as employing roughly 1,800 to 1,900 people. Because C Spire is privately held, it does not publish a standardized annual public-company workforce disclosure.

Corporate Office Hours

Public walk-in hours for the corporate office are not prominently published. Wireless support operates 24/7, while sales and chat hours vary by department.

Website

https://www.cspire.com/

Investor Relations

Not applicable in the conventional public-company sense because C Spire is privately held.

Careers Page

https://www.cspire.com/company/careers

C Spire Products & Services

Wireless Service

C Spire provides wireless voice, messaging, mobile data, smartphone plans, device sales, account management, and related mobile services. It remains one of the most prominent privately held regional wireless carriers in the United States.

5G Connectivity

The company continues to develop and provide 5G wireless connectivity across supported markets. C Spire’s network strategy combines mobile connectivity with its broader fiber and technology infrastructure.

5G Home Internet

C Spire launched 5G Home Internet in 2025 to expand residential broadband access in areas where traditional wired broadband options can be limited. The service uses wireless connectivity to deliver home internet to qualifying addresses.

Fiber Internet

C Spire Fiber provides high-speed residential broadband in Mississippi, Alabama, Tennessee, and expanding markets. Fiber services are designed for streaming, remote work, connected homes, gaming, and other high-bandwidth uses.

Home Services

C Spire Home customers can manage internet accounts, payments, service requests, and related residential connectivity needs. Home support is available 24/7 at 1-855-438-1009.

Business Internet and Fiber

C Spire Business supplies business-grade internet and private fiber connectivity for organizations requiring reliable bandwidth, multi-location networking, and enterprise connectivity.

Managed IT Services

C Spire provides outsourced IT management for businesses that need help maintaining networks, infrastructure, users, systems, hardware, and security without operating a fully internal IT team.

Cybersecurity

Business cybersecurity services include network protection, security assessments, managed security technologies, and solutions designed to protect systems, devices, applications, and organizational data.

Cloud Services

C Spire offers cloud infrastructure, cloud migration, hosted computing, backup, disaster recovery, and related enterprise technology solutions.

VoIP and Unified Communications

Business customers can access voice-over-IP and collaboration tools designed to combine business calling, messaging, meetings, and communications across multiple locations.

SD-WAN and Advanced Networking

C Spire Business provides SD-WAN and advanced network services that help organizations improve connectivity, resilience, security, and management across distributed offices.

Hardware and Software Solutions

The company works with major technology vendors to provide servers, networking equipment, software, communications infrastructure, storage, and related business technology.

Professional Services and Consulting

C Spire’s engineers and technology specialists provide consulting and project-based support for network architecture, cloud transformation, cybersecurity, infrastructure planning, and technology modernization.

My C Spire Account Services

Customers can use online tools and the My C Spire app to view account information, check usage, manage billing, make payments, and access other customer functions.

C Spire Corporate Phone Numbers

Corporate Phone Number

A separate universal corporate headquarters switchboard is not prominently published. For general customer routing, use 1-855-277-4735.

Corporate Headquarters Number

No separate verified headquarters-only number is prominently listed.

Headquarters Number

Main customer routing: 1-855-277-4735

Corporate Office Number

No distinct universal public corporate-office number is currently promoted.

Customer Service Number

1-855-277-4735

Customer Support Number

1-855-277-4735, available 24 hours a day for wireless support.

Toll-Free Number

1-855-277-4735

Wireless Sales Number

1-855-927-7473

Published sales hours vary by weekday and Saturday.

Billing Number

Wireless customers can call 1-855-277-4735 or dial #PAY (#729) from a C Spire phone for payment functions.

Home Services Number

1-855-438-1009

Available 24 hours a day.

Business Sales & Support Number

1-855-277-4732

C Spire currently lists this number for 24-hour business assistance.

Regional Office Number

C Spire does not publish one universal regional-office number. Customers should use the store locator or their assigned business representative.

Branch Office Number

Retail-store numbers vary by location and should be retrieved from the C Spire Store Locator.

International Number

No universal public international support number is prominently published.

Emergency / After-Hours Number

Wireless and business support are available 24/7 through their primary support lines.

Investor Relations Number

Not applicable because C Spire is privately held.

Media / Press Number

A single permanent public media number is not prominently listed across current consumer pages.

Human Resources Number

No universal public applicant HR number is prominently listed.

Privacy / Customer Advocacy

customeradvocacy@cspire.com and 1-855-277-4735.

How to Reach a Real Person at C Spire

For ordinary wireless account, billing, device, coverage, payment, or technical-support questions, the best first route is 1-855-277-4735 or 611 from a C Spire phone. The support line operates 24 hours a day. Customers should have their C Spire phone number, account information, device model, recent bill, and any error messages ready so the representative can identify the account and troubleshoot without unnecessary transfers.

For home internet or fiber problems, use 1-855-438-1009 instead of the wireless queue. Business customers should use 1-855-277-4732. C Spire also offers live chat, text support, social-media support, and retail locations, so a local store can be useful for device replacements, upgrades, SIM issues, and in-person account assistance.

If an ordinary support interaction does not resolve the issue, C Spire’s support page also provides escalation and feedback options, including its “Take It To The Top” route for unresolved concerns. Keeping the original case number, dates, representative names, bills, and screenshots will make escalation significantly easier.

How to File a Complaint Against C Spire

Complaints may involve billing, wireless coverage, fiber service, account changes, device issues, cancellation, business services, privacy, or customer-service interactions. Before escalating, collect the account number, affected telephone number or service address, bills, payment records, case numbers, screenshots, and dates of previous support contacts.

Step 1: Contact Customer Service

Start with 1-855-277-4735 for wireless service or the correct specialized line for home or business service. Explain the problem clearly, identify the charge or service at issue, and request a case or reference number. Keep a written record of the representative’s name, date, and promised resolution.

Step 2: Contact the Relevant Department

If the issue concerns home fiber, call 1-855-438-1009. Business customers should call 1-855-277-4732, while wireless sales and account concerns should stay with the wireless team. Routing directly to the correct division reduces delays and avoids repeating the complaint to multiple representatives.

Step 3: Request Supervisor or Management Review

If the first representative cannot resolve the complaint, ask for a supervisor or higher-level account review. Provide the prior case number and a concise timeline, and make clear what specific resolution you want, such as a billing correction, service repair, cancellation adjustment, or network investigation.

Step 4: Use the Company’s Written Complaint Channel

Send a written complaint through C Spire’s online feedback tools or use customeradvocacy@cspire.com for appropriate advocacy or privacy-related concerns. Written communication is particularly useful when the complaint involves repeated charges, account changes, or conflicting information because it creates a documented record.

Step 5: Contact Corporate Headquarters

For an unresolved serious matter, write to C Spire, 1018 Highland Colony Parkway, Suite 300, Ridgeland, MS 39157. Include copies of bills, case numbers, service dates, and previous correspondence, and clearly state the remedy you are requesting.

Step 6: Use the Specialized Complaint or Dispute Department

C Spire’s support platform provides higher-level feedback and “Take It To The Top” escalation for unresolved issues. For disputes covered by service agreements, review the agreement carefully because formal dispute procedures and arbitration provisions may apply.

Step 7: File With the Appropriate Regulator

Wireless and telecommunications complaints can be submitted to the Federal Communications Commission when they concern billing, service, number portability, accessibility, unwanted calls, or other regulated communications matters. State utility or public-service authorities may also have jurisdiction over certain telecommunications services depending on the state and product.

Step 8: Use Consumer Protection or Financial Dispute Options

If the complaint involves a card charge or payment dispute, customers can also contact the card issuer or financial institution. General consumer complaints may be submitted to the applicable state Attorney General or consumer-protection office after C Spire has had a reasonable opportunity to resolve the matter.

Step 9: Consider Formal Legal or Arbitration Procedures

C Spire’s network and service disclosures state that certain unresolved customer disputes are subject to binding arbitration under the applicable service agreement. Before starting arbitration or another legal process, review the specific contract governing the account, preserve all evidence, and consider obtaining legal advice if the financial or contractual issue is substantial.