This story was originally published on HackerNoon at: https://hackernoon.com/why-someone-next-to-you-gets-better-cell-service-at-crowded-events.
Discover how QCI secretly controls phone speeds during network congestion, and see how Verizon, AT&T, T-Mobile, and top MVNOs really compare.
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The article explains how LTE's Quality of Service Class Identifier (QCI) and its 5G equivalent, 5QI, determine which users receive network priority during congestion. It compares how Verizon, AT&T, T-Mobile, and major MVNOs assign priority levels, clarifies common misconceptions about "premium data," and helps readers choose a plan based on real-world network performance rather than marketing claims.