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Infrastructure

Middle Mile

The network infrastructure connecting an ISP's local facilities to the broader internet backbone. Middle-mile gaps in rural areas can bottleneck speeds even when last-mile infrastructure exists.

What It Means

The middle mile connects local networks (the last mile) to internet backbone networks and peering points. In urban areas, middle-mile capacity is abundant and cheap. In rural areas, a single fiber line may serve an entire region, creating a bottleneck. NTIA's Middle Mile Broadband Infrastructure Grant Program allocated $980 million to address these gaps. Without adequate middle-mile capacity, even a new last-mile fiber deployment cannot deliver full speeds.

Frequently Asked Questions

What does "Middle Mile" mean?

The network infrastructure connecting an ISP's local facilities to the broader internet backbone. Middle-mile gaps in rural areas can bottleneck speeds even when last-mile infrastructure exists.

Why does Middle Mile matter for internet quality?

The middle mile connects local networks (the last mile) to internet backbone networks and peering points. In urban areas, middle-mile capacity is abundant and cheap. In rural areas, a single fiber line may serve an entire region, creating a bottleneck. NTIA's Middle Mile Broadband Infrastructure Gra...

Related Terms

ISP (Internet Service Provider)
A company that provides internet access to consumers and businesses. Major U.S. ISPs include Comcast (Xfinity), Charter (Spectrum), AT&T, Verizon, and T-Mobile.
Last Mile
The final leg of the network connecting the ISP's infrastructure to the customer's home or business. The last mile is typically the most expensive part of broadband deployment.
Provider Competition
The number of ISPs offering broadband service in a given area. Areas with three or more competitors typically have lower prices and faster speeds than monopoly or duopoly markets.
Municipal Broadband
Internet service owned and operated by a local government or public utility, rather than a private ISP. Often provides faster speeds at lower prices than incumbent providers.

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About This Data

Definitions based on FCC standards, industry specifications, and federal broadband policy. Speed benchmarks reflect 2024 FCC standards. See our methodology.