How to Find an IP Address Range

Website domain names are associated with an identifying number referred to as an IP address. But in some cases a domain name might be associated with more than one IP address. In this case, the set of IP addresses associated with the domain name is referred to as the IP address range. IP address ranges are typically assigned in sets of sequential individual IP addresses. You can find the IP address range associated with a domain name using the free WHOIS search tool.

Instructions

1. Open a web browser and navigate to a WHOIS search provider.

2. Enter the domain name for which you want to find the IP address range in the search text box on the search page. The search box will typically be labeled "Search" or "Lookup" depending on the provider. Press the "Search" or "Lookup" button next to the text box. This opens the results page.

3. Locate the "IP Address" data on the results page. The IP address displayed, which will be a hyperlink, is in the range of IP addresses associated with the domain name for which you searched. Click the hyperlink. This opens the details page.

4. Locate the "NetRange" data on the search page. This shows the beginning and ending IP addresses for the IP address range associated with the domain name for which you searched.

References

• WHOIS search tool on the Network Solutions website

Resources

• Read this Article in Spanish
• WHOIS search tool on the Network Solutions website
• WHOIS search tool on the DNS411 website