C Spire Partners with Interop Technologies for RCS Business Messaging

Regional carrier expands advanced messaging capabilities for subscribers

Apr. 8, 2026 at 12:23pm

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C Spire, a privately held national advanced technology company and the largest independent wireless operator in the United States, has selected Interop Technologies to provide RCS business messaging (RBM) management services. This partnership will enable C Spire to introduce advanced business messaging capabilities to its more than two million regional subscribers across its network.

Why it matters

The expansion of RCS business messaging through this partnership between C Spire and Interop Technologies represents a significant milestone in the adoption of next-generation messaging technologies by regional U.S. carriers. This move aligns with the broader industry trend of operators seeking trusted partners to seamlessly integrate RBM into their networks and provide the necessary governance and operational control to support rapid enterprise messaging growth.

The details

Under the agreement, Interop Technologies will leverage its RBM management capabilities to provide C Spire with enhanced visibility and operational control over all RCS business messaging ecosystem activities. This will enable C Spire to support enterprises in engaging subscribers with rich, interactive messaging experiences directly within the native messaging client. Interop's RBM management services include brand and campaign ingestion and management, RBM enablement and onboarding oversight, messaging traffic visibility and monitoring, operator-controlled monetization frameworks, and integration with existing messaging infrastructure.

  • C Spire has selected Interop Technologies to provide RCS business messaging management services in April 2026.
  • Interop is set to enable more than two million regional subscribers for RBM in 2026, representing the largest and most recent coordinated expansions of RCS business messaging within North America.

The players

Interop Technologies

A global leader in advanced mobile messaging technology that provides solutions for mobile operators as messaging technologies continue to evolve.

C Spire

A privately held national advanced technology company and the largest independent wireless operator in the United States.

Charles Watson

Senior vice president of network operations at C Spire.

Stephen Zitnik

Chief technology officer at Interop Technologies.

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What they’re saying

“Interop's history as a messaging leader speaks for itself and their deep expertise in RCS technology makes them a natural partner for C Spire as we introduce advanced business messaging to our customers.”

— Charles Watson, Senior vice president, network operations at C Spire

“As RCS business messaging expands globally, operators are looking for trusted partners with the experience and operational expertise to introduce these services seamlessly into their networks and scale them effectively. Our focus remains on ensuring operators can deploy RBM with the visibility, oversight and operational control needed to manage and support rapid enterprise messaging growth.”

— Stephen Zitnik, Chief technology officer at Interop Technologies

What’s next

With commitments secured from multiple U.S. operators, Interop is set to enable more than two million regional subscribers for RCS business messaging in 2026, representing the largest and most recent coordinated expansions of RBM within North America.

The takeaway

This partnership between C Spire and Interop Technologies highlights the growing importance of RCS business messaging for regional U.S. carriers, as they seek to provide advanced messaging capabilities to their subscribers and enable enterprises to engage customers through rich, interactive experiences. The collaboration also demonstrates the value of working with experienced partners like Interop to ensure seamless integration and effective management of these next-generation messaging services.