Message from Bryant Barnes, President and CEO:

Hello from everyone at Comporium. We invite you to browse through these pages to see what we’re doing — investing in technology to improve your telecommunications service and investing to nourish the communities we call home.

Comporium, dating back to 1894, has deep roots in upstate South Carolina — roots that now have spread into the Midlands of our home state and into western North Carolina. When we say we’re a part of the community, we mean it. We live here, too.

People in our communities often say we’re unique – a local telecommunications company that relates to its customers on a personal basis, yet is often the first to roll out a new technological development while larger companies are still studying it.

We like to hear people say that, and we work hard every day to keep up with advances in technology around the globe so we can offer them to you.

From a small family with a single phone... to a large corporation with banks of data to protect… to an astronomical research center linked to satellites around the world, every customer is important to us. We ask what you need—not just today, but tomorrow—and we listen. Then we get to work making that happen, exceeding your expectations.

We take pride in our reputation as a caring company that’s also a technological leader, and we’re glad for the opportunity to share these highlights with you. Let us hear from you – by phone,, Facebook, Twitter or YouTube – with your ideas about how we can continue to make life easier for you.

Core Beliefs / Who We Are

Large enough to offer cutting edge technology, but small enough to offer superior customer service, Comporium strives to make each customer’s life easier. We are a telecommunications leader offering a diverse and technologically rich suite of business products. Comporium, an Enterprise that is over 120 years old and is one of the largest telecom providers in the nation, always strives to deliver the latest technology to our customers. We support businesses with innovative solutions that include voice, Internet, data, wireless, structured wiring and cabling, security, monitoring, automation, computer network service, and digital video. Our team is dedicated to meet the communications needs of each customer and to provide unsurpassed value.

Comporium, which is headquartered in Rock Hill, S.C., provides services in York, Lancaster, and Chester Counties in the Upstate; as well as, in parts of six counties in the Midlands: Lexington, Saluda, Edgefield, Orangeburg, Calhoun, and Aiken, and Transylvania County, N.C. Additionally, Comporium offers a comprehensive suite of business communications equipment and service options, in Charlotte, NC.



Comporium, known then Rock Hill Telephone Company, was founded in 1894 by John Anderson, John Cherry, and Andrew Smith. During the first year, the company installed 27 phone lines, most of them connecting the businesses and suppliers of the company’s founders. During the next two decades, Paul Workman and his aunt grew the company to 443 phones before ultimately selling the company to E.L. and Mary Sanders Barnes on Mar. 10, 1912. Four generations later, the descendants of E.L. and Mary are still running what has now become Comporium, as the company enters its 120th year of business. During the past century, we have acquired an interest in five other independent telephone companies, growing to serve Fort Mill, Lancaster, Heath Springs, Great Falls, Brevard (NC), and the Midlands of South Carolina.

Our Leaders

Telephone Museum

Museum Info:

117 Elk Ave | Rock Hill | South Carolina
Phone: 803.324.4030
Driving Directions

Museum Hours:

Monday, Wednesday, Friday & Saturday
10:00 AM – 2:00 PM

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