CoreSite, a subsidiary of American Tower Corporation, added native 400 Gbps Amazon Web Services Direct Connect to its Chicago data‑center campus on January 15, 2026, providing ultra‑high‑bandwidth, low‑latency connectivity for customers moving large data volumes to the cloud.
The launch is part of CoreSite’s strategy to support AI and other data‑intensive applications that require high‑throughput, low‑latency links to public clouds. By offering 400 Gbps Direct Connect, CoreSite positions itself as a preferred partner for enterprises that need to transfer massive datasets—such as those used in machine‑learning training or real‑time analytics—without incurring the higher costs and latency of traditional internet paths.
For American Tower, the expansion strengthens its data‑center business, a key growth engine alongside its tower operations. The new capability is expected to attract additional colocation customers and deepen existing relationships, potentially increasing revenue and margin contribution from the data‑center segment. CoreSite’s data centers are interconnection‑rich, certified for NVIDIA DGX‑Ready, and already offered 400 Gbps at Silicon Valley and Northern Virginia campuses; the Chicago launch expands the high‑bandwidth offering to a major mid‑market hub.
Management emphasized the strategic importance of the launch. Juan Font, President and CEO of CoreSite and SVP of American Tower, said the AI economy demands high interoperability and that the new link gives customers low‑latency, high‑bandwidth pipelines that enhance security and integration across digital environments. The move aligns with AMT’s broader shift toward high‑margin digital infrastructure and supports its goal of scaling AI platform monetization.
The launch also offers customers up to 70 % savings on data replication and eliminates certain cloud egress costs, making CoreSite an attractive partner for enterprises moving AI workloads to colocation facilities. The addition of 400 Gbps connectivity in Chicago strengthens CoreSite’s geographic reach and reinforces American Tower’s strategy to invest in digital infrastructure as a growth driver.
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