Data Center Interconnect (DCI) Market Report 2026

The data center interconnect (dci) market size has grown rapidly in recent years. It will grow from $15.38 billion in 2025 to $17.54 billion in 2026 at a compound annual growth rate (CAGR) of 14.1%. The growth in the historic period can be attributed to growth of hyperscale data centers, rising need for data redundancy, increasing adoption of cloud services, demand for business continuity solutions, expansion of metro data networks.

The data center interconnect (dci) market size is expected to see rapid growth in the next few years. It will grow to $29.85 billion in 2030 at a compound annual growth rate (CAGR) of 14.2%. The growth in the forecast period can be attributed to surge in inter-cloud connectivity demand, increasing data security requirements, growth of distributed workloads, rising adoption of SDN-based networking, need for ultra-low latency connections. Major trends in the forecast period include high-speed packet-optical connectivity expansion, secure and encrypted inter-data center links, quality of service (QoS)-driven network architectures, workload distribution across multiple data centers, long-haul and metro dci network integration.

The increasing number of data centers is expected to drive the growth of the data center interconnect (DCI) market going forward. A data center is a facility specifically designed to house IT infrastructure, support the deployment and operation of applications and services, and store data. DCI technology facilitates the connection of multiple data centers, allowing them to share and pool resources and support real-time cloud-based analytics platforms for monitoring and optimizing infrastructure. For instance, in September 2024, according to the National Telecommunications and Information Administration, a US-based government agency, the United States had approximately 5,000 data centers, with demand for these facilities projected to grow by around 9% annually until 2030. Therefore, the increasing number of data centers is driving the data center interconnect market.

Major companies in the data center interconnect (DCI) market are focusing on developing advanced solutions, such as premium inter-data-center optical-fiber connectivity, to address the growing need for high-capacity, low-latency, and scalable data transmission across distributed data center networks. Premium inter-data-center optical-fiber connectivity involves high-quality, ultra-high-bandwidth fiber links that enable faster, more reliable, and lower-latency data transfer between multiple data centers. For instance, in November 2024, HGC Global Communications Limited (HGC), a China-based telecommunications company, launched a new DCI solution in the Philippines connecting eight major data centers. This service provides direct data center-to-data center links without intermediate nodes, minimizing latency and eliminating potential points of failure. It ensures rapid and dependable data transfers, supporting the increasing demand for cloud services, content hosting, and advanced technologies like AI and cybersecurity in the Philippines.

In February 2025, Nokia Corporation, a Finland-based technology company, acquired Infinera for an undisclosed amount. Through this acquisition, Nokia aims to expand its scale in optical networks, accelerate its product development roadmap, and enhance its technological capabilities, strengthening its presence in data center and web-scale networking markets. Infinera Corporation, a US-based company, specializes in open optical-networking solutions and advanced optical semiconductors for long-haul, data-center interconnect, submarine, metro, and enterprise applications.

Major companies operating in the data center interconnect (dci) market are Nippon Telegraph and Telephone Corporation; Huawei Technologies Co. Ltd.; Cisco Systems Inc.; Fujitsu Limited; Nokia Corporation; ZTE Corporation; Equinix Inc.; Juniper Networks Inc.; Digital Realty Trust Inc.; Arista Networks Inc.; Ciena Corporation; Microsemi Corporation; Infinera Corporation; Extreme Networks Inc.; Colt Technology Services Group Limited; ADVA Optical Networking SE; Cyxtera Technologies; Reichle and DeMassari AG; CoreSite Realty Corporation; Flexential Corp.; Ekinops SA; Megaport Limited; Interxion Holding NV; Cologix Inc.; Evoque Data Center Solutions LLC; Innovium Inc.; Pluribus Networks; XKL LLC; Fiber Mountain Inc.; Ranovus Inc.

North America was the largest region in the data center interconnect (DCI) market in 2025. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in the data center interconnect (dci) market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in the data center interconnect (dci) market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

Tariffs have affected the data center interconnect ecosystem by raising costs for imported optical components, routers, switches, and high-speed communication platforms essential for DCI deployments. The impact is most visible in product-heavy segments and large-scale deployments across north america and asia-pacific, where cross-border supply chains dominate network infrastructure sourcing. Communications service providers and internet content providers face higher capital expenditure and extended rollout timelines. Conversely, tariffs are driving greater adoption of software-defined networking, localized manufacturing, and service-based DCI models that reduce hardware dependency and enhance long-term network resilience.

The data center interconnect (dci) market research report is one of a series of new reports that provides data center interconnect (dci) market statistics, including data center interconnect (dci) industry global market size, regional shares, competitors with a data center interconnect (dci) market share, detailed data center interconnect (dci) market segments, market trends and opportunities, and any further data you may need to thrive in the data center interconnect (dci) industry. This data center interconnect (dci) market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenario of the industry.

Data center interconnect (DCI) pertains to a technology that establishes connections among multiple data centers spanning varying distances, ranging from short to long distances, utilizing high-speed packet-optical connectivity. DCI links offer enhanced encryption to ensure secure information sharing, enable companies to enforce quality of service (QoS) for optimal performance, and facilitate the distribution of workloads across different connection types.

The primary categories of data center interconnect (DCI) encompass products, software, and services. DCI products, including packet-switching networking, are instrumental in transferring small data segments across diverse networks. These products find applications in various areas such as disaster recovery and business continuity, shared data and resources, data (storage) mobility, among others. End users, including communication service providers, internet content providers, governments, and others, utilize these products for their specific needs.

The data center interconnect (DCI) market includes revenues earned by entities by providing services such as professional services and managed services. The market value includes the value of related goods sold by the service provider or included within the service offering. Only goods and services traded between entities or sold to end consumers are included. The data center interconnect (DCI) market consists of sales of products such as packet-switching networking and optical DCI. Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors, and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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