DIA is here to stay: Why dedicated internet access remains the foundation for enterprise connectivity

If the adage, “The only thing constant is change,” resonates with you as much as it does me, then I’d venture a guess that you’re more than familiar with the constant flux of today’s technology landscape. Today, we’re integrating rapidly advancing artificial intelligence (AI) capabilities on both a small and large scale—from chatbots to software development—which produces massive data flow. In 2019, SASE (Secure Access Service Edge) emerged as a new cloud-based model for networking and cybersecurity that is now an integral part of many organizations’ connectivity strategies. Not long before that, smart devices were changing the way manufacturers worked, and IoT promised more efficiency and operational visibility than we’d ever seen before. Since its emergence, the internet has remained a critical aspect of how we do business—and dedicated internet access is the foundation that supports these advancements.

Why is access to the internet so important?

To answer this question, we just need to look around the rooms we’re all sitting in. How are you reading this blog? Did you message your family members today? Do you play music or shows from streaming services? Does your phone send you weather alerts? All these things rely on an internet connection. The fact is the internet has become critical infrastructure in our daily lives.

Enterprises rely on the internet in much the same way, although on a larger scale. Without reliable and secure internet, employees wouldn’t be connected, customer service would be less efficient, advertising would take longer to reach consumers, and in general, operations would be running at a snail’s pace compared to what we’re used to. While there are other connectivity technologies, there isn’t really a direct substitute for the internet.

With dedicated internet access (DIA), organizations benefit from access to the complete scale of public internet infrastructure while not having to share bandwidth, helping ensure consistent speeds and performance.

Connectivity vs. dedicated bandwidth

Connectivity is often used as a blanket term to describe any networking solution. While this generalization can be a helpful descriptor, it’s important to be specific about how we use these technologies. For example, enterprise broadband is an internet access service, but it relies on shared bandwidth and doesn’t provide symmetrical speeds or performance SLAs, meaning it can’t meet the demands of enterprises in the way that DIA can.

The “dedicated” in dedicated internet access means that a specific amount of internet speed is reserved for your organization alone, so there’s no competing traffic to slow your connection down. DIA provides consistent and reliable performance, providing you with the dedicated bandwidth needed to power applications and keep operations running smoothly.

6 examples of dedicated internet access in action

Dedicated internet access is a key piece of optimizing business performance and driving mission success. Let’s explore its application in key business use cases.

1. Consistent access for enterprise employees

Whether supporting employees in the office, at home, or a combination of the two, DIA assigns each connection a unique IP address that doesn’t change over time. With dedicated IP addresses, cloud services and applications can easily recognize users, minimizing access and security risks.

2. Uninterrupted connectivity for financial institutions

Dedicated internet access backed by performance SLAs offers reliable internet connectivity to financial institutions. A dependable internet connection, with the fewest number of interruptions possible, is essential for real-time transactions and time-sensitive trading.

Horizon Bank leverages Lumen^® Dedicated Internet Access to provide redundant connections, minimize downtime and deliver the 24/7 connectivity their 350,000+ customers rely on. “Lumen Dedicated Internet Access removed the need for me to run a link balancer to provide redundant connections in case of outage—which is critical as the most downtime I can have is 21 seconds. Plus, I was able to eliminate another piece of hardware to maintain and one more potential point of failure. The main impact on our business is that we now have a more cost-effective way to provide the 24/7 connectivity that our customers expect,” said Mahendra Verma, Sr. Network Engineering Manager at Horizon Bank.

3. Symmetrical speeds for AI builders

While AI tools aren’t necessarily new, generative AI applications becoming widely available has changed the way many large tech companies are providing services to customers and partners. The use of these tools means sending and receiving large amounts of data is inevitable, and dedicated internet access supports symmetrical upload and download speeds so models can be trained and deployed efficiently.

4. Low-latency operations to support manufacturers

Many manufacturers rely on automated production lines and remote monitoring systems which require immediate feedback so that ops commands are transmitted near-instantaneously and don’t slow production down. Dedicated internet access facilitates low-latency access, minimizing the delay before data begins to transfer, helping ensure commands reach the manufacturing floor quickly. Additionally, many organizations, such as Upstate Niagara Collective, must maintain 24/7/365 operations. Lumen Dedicated Internet Access gives them high availability, so downtime and disruptions don’t get in the way of serving customers nationwide.

5. Access to cloud-based data for healthcare organizations

Most healthcare organizations rely on online platforms to store patient data (Electronic Health Records or EHRs) and need to be able to access it quickly to inform care. DIA uses dedicated circuits—such as Ethernet or wavelength connections—that facilitate 1:1 connections from an organization to cloud servers. Direct connections to leading cloud providers help ensure staff can quickly and securely access EHRs from cloud-based data storage applications.

6. Foundational connectivity for overlay services

Dedicated internet access is often used as an underlay for other network solutions, providing physical pathways for data transmission across the network. SASE/SD-WAN and voice/collaboration solutions rely on dedicated bandwidth to perform their functions—whether that be secure access from different locations or low latency processing for real time data use and communication. In fact, organizations can experience 40% quicker application performance² from adopting Lumen SD-WAN, an advantage made possible by robust, dedicated internet.

Choosing a DIA provider

As discussed in previous blogs, you can’t expect every internet service provider (ISP) to deliver the same level of service. An ISP’s network breadth and peering partners can have a distinct impact on your overall performance. Regardless of your industry, dedicated internet is the foundation for application performance, cloud connectivity, and efficient operations.

Lumen operates the network ranked #1 globally in Autonomous Systems (AS).³ With ~340,000 global route miles of fiber and ~163,000 on-net buildings, we have the scale and scope to grow with you. Our Dedicated Internet Access service offers symmetrical speeds, 99.99% service availability SLA and up to 100 Gbps of dedicated bandwidth. Position your organization for growth in today’s rapidly moving digital economy with Lumen as your trusted partner.

Trust in Lumen, the Frost & Sullivan 2025 North American Company of the Year for Dedicated Internet Access, to provide reliable, secure and enterprise-grade DIA.

_{^¹Frost & Sullivan, Best Practices in NA DIA Industry Report, 2025.}

_{^²IDC, The Business Value of Lumen IP Solutions, 2025.}

_{^³The Center for Applied Internet Data Analysis (CAIDA), AS Rank, April 2025.}

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