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IP Lookup

Find IP address, geolocation, ISP, and reverse DNS details

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What is an IP Lookup?

IP Lookup is a service which fetches detailed information about a given IP (Internet Protocol) address. Each device on the Internet has at least one IP address identifying it for network communications. By performing an IP Lookup, you can get any IP address or domain name's location, ISP, organization, reverse DNS hostname, ASN, and much more.

We have a free IP Lookup service that can convert domain names to IP addresses and look into geolocation databases to give you a wealth of information about the network. Just type in a domain name or IP and you'll get results in no time.

IP Lookup is a tool that offers these kinds of information:

Once you have run an IP Lookup, our tool will output the following information:

  • IP Address — The resolved IPv4 or IPv6 address.
  • IP Version — If it's an IP address, what version is it? (IPv4 or IPv6).
  • Country, Region, City — The general geographic area of the IP address.
  • IP Coordinates — Latitude and longitude of the IP.
  • Address — address used to deliver the mail to the location.
  • The Internet Service Provider who owns the IP range.
  • Organization — The business or organization that is hosting the IP block.
  • ASN — Autonomous System Number, a number that identifies the network.
  • Reverse DNS — The hostname that was returned from a PTR (reverse) lookup.
  • All Resolved IPs — if a domain resolves to more than one IP, all are shown.

Below are instructions about how to use the IP Lookup Tool:

The IP Lookup tool is very simple to use:

  • Enter a domain name (e.g., example.com) or an IP address (e.g., 8.8.8.8).
  • Avoid using http:// or https:// only use the domain or ip.
  • Click on the Lookup IP button.
  • Examine detailed results in organised tables.

Here are some helpful hints to ensure accurate IP lookups:

  • For best results use a root domain. Don't use www.example.com; use example.com instead.
  • The edge server IP address can be used for domains behind CDNs instead of the origin server.
  • The accuracy of geolocation varies depending on the IP range. ISP assigned IPs are mostly more precise than datacenter IP addresses.
  • There are some IPs that are private or reserved, such as 192.168.x.x or 10.x.x.x, and won't be included in the public geolocation data.
  • Not all times a reverse DNS (PTR) record will exist. Either no PTR record is found, or it doesn't have one.

Here are some typical applications of IP lookup.

  • Network Troubleshooting —  Ensure that a domain name returns to the correct IP address and that there are no DNS misconfigurations.
  • Security Research — Locate suspicious IPs in server logs and determine ISP and ASN of the suspicious IPs.
  • Content Delivery Verification — Make sure that your domain resolves to a CDN edge server or origin server.
  • Geolocation Checks — Check the geographic location that a server or ip address claims to be.
  • Reverse DNS Validation — Validates whether an IP address has a correct PTR record for email deliverability.

Privacy

The IP address and/or the domain you search for is not stored, and the data of your search request is not logged. There is no need to register an account, place rate limits or even complete a captcha to use the IP Lookup tool.

Frequently Asked Questions

What is an IP Address?

IP (Internet Protocol) addresses are the numerical labels that are assigned to each device that connects to a computer network. IPv4 addresses use a 32-bit format (e.g., 192.0.2.1), while IPv6 addresses use a 128-bit format (e.g., 2001:db8::1).

Is IP Lookup Tool free?

Yes. No captchas, no daily limits, no sign-up, and 100% free, our IP Lookup service is quite simple.

Is it possible to find out any IP address?

Yes. Any IPv4 or IPv6 address that is exposed on the internet can be looked up. Private and reserved IP ranges (such as 10.x.x.x, 192.168.x.x, 127.0.0.1) will be displayed with minimal data, but not geolocation data as these are not routable on the public internet.

What is the accuracy of IP location?

Generally, IP geolocation will be accurate at the country level and city level but will not be accurate at the street level from an IP address. The Datacenter IP as well as CDN edge servers can report the location of the server different from the actual server location.

Reverse DNS, what is that?

Reverse DNS (rDNS) is the process of translating back from IP address to hostname, which is done by using a PTR record. Generally used to validate mail servers and for network troubleshooting. Not every IP is set up with a PTR record.

What is an ASN?

An ASN (Autonomous System Number) is a number that uniquely represents a network that belongs to one organization. There are one or more ASNs for each ISP, cloud provider, and large company. The ASN can be used to determine ownership of a specific IP range.