Latency is hugely important in wireless networks, where customers expect to get information sent to their smartphones and tablets extremely quickly. However, it's just as important in wireline networks. Latency is defined as the time it takes for a source to send a packet of data to a receiver. Latency is typically measured in milliseconds. The lower the latency (the fewer the milliseconds), the better the network performance. FierceTelecom, through a new partnership with Cedexis, a provider of Internet measurement and real-time performance optimization solutions, hopes to shed some light on how the top seven U.S. wireline networks performed in terms of latency, throughput and availability. In conducting its analysis, Cedexis measured the networks against five U.S. CDNs (from Akamai, Limelight, Edgecast, Level 3 and Highwinds). The company has measurements for each region of the country, but unless noted the results are averaged across the entire United States. For more on how the country's top wireline providers stacked up, check out this special report.