Canada, South Korea, the United Kingdom and the United States all boasted the highest performing ISPs of 2025, according to the latest Netflix ISP Speed Index, which is a regular report on which internet service providers (ISPs) provide the best prime time Netflix streaming.

Telus – Fiber Optic in Canada, LG U+ in South Korea, Virgin in the UK and Optimum Fiber in the US all had a monthly average speed of 3.37 Mbps, the streamer said in a statement posted on its website.

Nine ISPs followed close behind with an average monthly speed of 3.35 Mbps, including three from Spain: Jazztel Fibra, Orange Fibra, and Vodafone DSL. South Korea also popped up again thanks to SK Broadband. The other ISPs included Hong Kong’s HKBN, Portugal’s MEO, Poland’s Orange Światłowód and Time in Malaysia.

Not surprisingly, Spain also ranked first among the highest performing countries and regions for all of 2025, alongside Hong Kong and Singapore. The UK followed in second place. Five countries tied for third, including the Netherlands, Norway, Portugal, South Korea and the US. Canada and Iceland split fourth-place honours. And, fittingly, five countries (Hungary, Ireland, New Zealand, Romania and Switzerland) shared fifth place.

This in-depth look back at 2025 is the first of Netflix’s new quarterly ISP Speed Indexes, where the aim is to provide deeper reporting on the trends, shifts and insights seen globally.

The Netflix ISP Speed Index is a measure of prime-time Netflix performance on a particular ISP and not a measure of overall performance for other services or data that may travel across the specific ISP network. Higher Netflix performance generally means better picture quality, quicker start times, and fewer interruptions.