Prime-time Netflix Inc. streaming speeds slowed for several top U.S. internet service providers in November, leading the U.S.'s overall rank to slip two places in a country-by-country comparison of the fastest Netflix experience.
Verizon Communications Inc.'s Fios retained its No. 1 spot for providing the fastest streaming experience among the big U.S. ISPs, with average prime-time speeds of 4.65 Mbps in November, down from 4.67 Mbps the prior month, according to Netflix's recent speed index update.
Cox Communications Inc. tied with Altice USA Inc.'s Optimum service at second place in the November U.S. provider ranking, registering average streaming speeds of 4.59 Mbps each. Cox averaged speeds of 4.63 Mbps in October, while Optimum registered 4.58 Mbps that month.
Charter Communications Inc.'s Spectrum ended November with average streaming speeds of 4.58 Mbps, down from 4.63 Mbps in the prior speed index. As a result, Spectrum fell two places in the U.S. internet service provider ranking, to No. 4.
Verizon's DSL service showed the biggest month-over-month gain, with download speeds averaging 4.08 Mbps in November compared to 3.98 Mbps in October.
Globally, Switzerland once again saw the fastest streaming speeds among measured countries, averaging 4.62 Mbps, followed by Romania and Iceland, at 4.57 Mbps and 4.51 Mbps, respectively. The U.S. fell to No. 7 from No. 4, with average speeds of 4.41 Mbps, down from 4.44 Mbps in October.
Uruguay registered the largest month-over-month gain among countries, with average speeds of 3.17 Mbps compared to 3.04 Mbps in October. Brazil and Greece also registered significant gains in speeds, to 3.32 Mbps and 3.73 Mbps, respectively.
Netflix's speed index measures prime-time video speeds for content streamed on Netflix's platform. It does not measure overall performance for other services or data that may travel across the network.