What is an ISP and what does it do?

Internet Basics
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An ISP, or Internet Service Provider, is the company that connects your home, business, or mobile device to the internet.

When you browse websites, stream videos, send emails, or use online applications, your ISP provides the connection that allows your device to communicate with the rest of the internet.

ISPs may offer different types of internet service, including fiber, cable, DSL, fixed wireless, satellite, and mobile data connections. The speed, reliability, and features available can vary depending on the provider and technology being used.

Most internet users interact with their ISP every day, even if they rarely think about the role it plays behind the scenes.

If you’d like to learn more about ISPs and how internet connections work, check out the related resources below.

Key Takeaways

  • An ISP provides access to the internet.
  • ISPs offer various types of internet connections.
  • Internet speed and reliability can vary between providers.
  • Most online activities depend on services provided by an ISP.
  • Your public IP address is typically assigned by your ISP.

Related Resources

Related Community Discussions

Discussion Questions

  • Who is your current ISP?
  • Have you changed internet providers in the past?
  • What factors are most important when choosing an ISP?
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Many people assume that all internet connections are essentially the same, but the technology used by an ISP can have a significant impact on performance.

For example, fiber internet often offers lower latency and higher upload speeds than some other connection types. Factors such as network congestion, infrastructure, and location can also affect the user experience.

What type of internet connection do you currently use?

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Over the years, I’ve used several different types of internet connections, including DSL, cable, and fiber.

One thing I’ve learned is that advertised speed isn’t always the whole story. Reliability, latency, and customer support can be just as important when evaluating an internet provider.