What Is My ISP?

Updated October 8, 2026

How the provider is detected

Every public IP address belongs to a block registered to an organisation. Each network on the internet also has an AS number (autonomous system), for example “AS15169 Google LLC”. We look up your public IP in this registry and show the network it belongs to — usually your internet provider.

Why another company may appear

• VPN or proxy. You see the hosting company of the VPN server, not your provider. Check for a proxy or VPN.
• Parent company or legal name. Brands often run on a network registered under the parent company or an older name.
• Wholesale networks. Smaller providers may rent lines and addresses from a bigger operator, whose name appears instead.
• Mobile data. On a phone network you see the mobile operator, even if your home internet comes from someone else.
• Work or school networks. The organisation’s own provider or network appears.

Other ways to find out your provider

• Your contract or bill — the most reliable source.
• The router’s status page: the WAN or internet section often shows the provider’s connection type and DNS servers, and sometimes the provider’s name. Find your router’s address.
• The label on a modem or router supplied by the provider.

When you need to know it

The provider’s name matters when you call support, set up a new router (some connections need the provider’s login details, such as PPPoE), check whether you are behind CGNAT, or compare plans. The name shown here does not reveal your account or address — only the company that owns the network.

Internet provider: frequently asked questions

What does the AS number mean?

It identifies a network on the internet. Large providers have one or several; the name next to it is the registered owner.

Why does it show a hosting company?

You are probably connected through a VPN, proxy or cloud service, so the address belongs to a data centre.

Can my provider see which sites I visit?

It sees which servers you connect to, though not the content of encrypted (HTTPS) pages. A VPN hides even that from the provider.