How we identify your ISP
Every public IP address is allocated by a regional internet registry to an organization, usually your internet service provider, and is announced on the internet by that provider's autonomous system. When you open this page, we look up the IP address your connection is using and match it to the network that owns it. That is why the result reflects whichever network you are actually using right now: home broadband, mobile data, office Wi-Fi or a VPN.
Why would I need to know my ISP?
- Contacting support when you are troubleshooting an outage or slow speeds.
- Checking that a VPN works: if the ISP shown is your home provider, the VPN is not active.
- Configuring services such as email (some ISPs block port 25), port forwarding or a static IP.
- Comparing providers when you move house or your contract ends.
Other ways to find your internet provider
- Check your router: the brand sticker or the admin page (often at 192.168.1.1) usually names the ISP.
- Look at your bill or bank statement.
- Run
tracert 8.8.8.8(Windows) ortraceroute 8.8.8.8(macOS/Linux): the first hops after your router often contain the ISP's domain name.
Read the full guide: How to find out who your internet provider is.
Frequently asked questions
Why does it show a company I have never heard of?
Many brands resell access over another company's network, and IP blocks are often registered under the parent company or wholesale operator.
Can my ISP see what I do online?
Your ISP can see which servers you connect to and, unless you use encrypted DNS, which domains you look up. HTTPS hides page contents and full URLs. A VPN hides the destinations from your ISP but shifts that visibility to the VPN provider.