Limits RegistryPUBLIC RECORD
Limits RegistryMcKay Brothers / Quincy Data published a one-way latency of 3.982 ms over their microwave/millimeter-wave relay network between Aurora, IL (near Chicago) and Carteret, NJ (near the Nasdaq data center) — roughly 1,200 km — in a release dated May 12, 2016. Microwave beats fiber on this route because signals travel through air at close to the vacuum speed of light, versus roughly 68% of that speed in glass fiber. This is the most recent publicly documented figure for this specific corridor as of 2026; providers have continued upgrading their networks since, so a newer figure may exist without having been published.
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McKay Brothers / Quincy Data published a one-way latency of 3.982 ms over their microwave/millimeter-wave relay network between Aurora, IL (near Chicago) and Carteret, NJ (near the Nasdaq data center) — roughly 1,200 km — in a release dated May 12, 2016. Microwave beats fiber on this route because signals travel through air at close to the vacuum speed of light, versus roughly 68% of that speed in glass fiber. This is the most recent publicly documented figure for this specific corridor as of 2026; providers have continued upgrading their networks since, so a newer figure may exist without having been published.
The lowest one-way transmission latency publicly documented for a real, commercially operated long-haul network route.
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Permanent ID limitsregistry.com/limits/LR-LOW-LATENCY-LINK
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Limits Registry. LR-LOW-LATENCY-LINK. Lowest one-way latency, long-haul network link. 2026.