What Is My IP Address?
Check your public IP address and approximate location instantly.
What Is an IP Address?
An IP address (Internet Protocol address) is a numerical identifier used by devices and networks to communicate over the internet. Your public IP address identifies your internet connection to websites, servers, and other online services.
You can think of an IP address as a digital return address. When your device requests information from a website, the server needs to know where to send the requested data. Your public IP address helps make that communication possible.
When you enter a domain name such as example.com into your browser, the Domain Name System (DNS) helps translate that human-readable domain name into an IP address that computers can use to locate the appropriate server.
What Information Can My IP Address Reveal?
A public IP address can reveal general information about the internet connection you are using. Depending on the network and geolocation database, an IP lookup may provide information such as:
- Country
- Region or state
- City or approximate geographic area
- Internet Service Provider (ISP)
- Network or organization
- Approximate timezone
However, your IP address does not normally reveal your exact home address or exact physical location to ordinary websites. IP geolocation is an estimate, and its accuracy can vary depending on your ISP, network configuration, mobile carrier, VPN, proxy, and the geolocation database being used.
Public IP Address vs. Private IP Address
Your devices may use both public and private IP addresses. Although both are IP addresses, they serve different purposes.
Public IP Address
A public IP address identifies your internet connection to the wider internet. It is generally assigned by your Internet Service Provider (ISP). Websites and online services can see a public IP address when you connect to them.
The IP address displayed by the Rubic8 What Is My IP tool is your public-facing IP address.
Private IP Address
A private IP address is used inside a local network, such as your home or office network. Your router can assign private IP addresses to computers, smartphones, smart TVs, printers, and other connected devices.
Common private IPv4 address ranges include:
10.0.0.0 – 10.255.255.255172.16.0.0 – 172.31.255.255192.168.0.0 – 192.168.255.255
Multiple devices on the same local network can therefore have different private IP addresses while sharing a public IPv4 address when accessing the internet.
IPv4 vs. IPv6: What's the Difference?
The internet currently uses two major versions of the Internet Protocol: IPv4 and IPv6.
IPv4
IPv4 addresses contain four groups of decimal numbers separated by periods. For example:
192.0.2.1
IPv4 has been widely used for decades. Because IPv4 provides a limited address space, technologies such as Network Address Translation (NAT) are commonly used to allow multiple devices to share public IPv4 connectivity.
IPv6
IPv6 provides a vastly larger address space and uses hexadecimal notation. An IPv6 address may look like this:
2001:db8:85a3::8a2e:370:7334
Many modern internet providers and networks support IPv6 alongside IPv4. Whether you use IPv4, IPv6, or both depends on your ISP, device, network configuration, and the online service you are connecting to.
Why Does My IP Location Show a Different City?
IP geolocation is not the same as GPS location. An IP lookup estimates your location based on information associated with your public IP address and network.
As a result, the city shown for your IP address may be different from your actual location. Your IP may be associated with an ISP gateway, regional network, mobile carrier, corporate network, VPN server, or data center located somewhere else.
For this reason, IP-based location information should be treated as an approximate location, not an exact physical address.
Can My IP Address Change?
Yes. Many internet connections use a dynamic IP address, which means the public IP address can change over time.
Your ISP may assign you a different public IP address when your connection reconnects, your router restarts, the provider changes its network allocation, or for other network-related reasons.
A static IP address, by contrast, is intended to remain consistent. Static IP addresses are often used for servers, business networks, remote access, and other applications where a predictable network address is useful.
Can a VPN Change My IP Address?
Yes. When you connect to a VPN (Virtual Private Network), your internet traffic is routed through the VPN server. Websites will generally see the public IP address used by that VPN connection instead of the public IP address normally visible from your internet connection.
This can also change the approximate location reported by IP geolocation services. For example, if you connect through a VPN server in another country, an IP lookup may associate your connection with the location of that VPN server.
Proxy servers and some other privacy services can affect the IP address visible to websites in a similar way.
Why Would I Need to Know My IP Address?
Knowing your public IP address can be useful for a variety of networking, privacy, and troubleshooting tasks, including:
- Checking whether your public IP address has changed
- Testing whether a VPN or proxy is working
- Troubleshooting internet and network problems
- Configuring remote access
- Checking firewall or server access rules
- Troubleshooting website or hosting connections
- Checking the approximate location associated with your connection
If you need information about another IP address rather than your current one, you can use Rubic8's IP Address Lookup tool.
Frequently Asked Questions
What is my IP address?
Your public IP address is the internet-facing address associated with your connection. The What Is My IP tool at the top of this page automatically detects and displays the public IP address visible to the service.
Is my IP address my exact location?
No. An IP address can be associated with an approximate geographic area, but IP geolocation should not be treated as an exact physical location. The displayed city may differ from where you are actually located.
Can someone find my home address from my IP address?
An IP address by itself does not normally allow an ordinary internet user to determine your exact street address. Internet service providers may maintain subscriber information associated with their network assignments, but that information is not normally available through public IP lookup tools.
Why did my IP address change?
Your ISP may use dynamic IP addressing, which allows your public IP address to change periodically. Your visible IP can also change when you switch networks, move between Wi-Fi and mobile data, connect to a VPN, or use a proxy.
Does using Wi-Fi change my public IP address?
Connecting to a different Wi-Fi network can change the public IP address visible to websites because you are using a different internet connection. Devices connected to the same home or office router may often appear under the same public IPv4 address while having separate private IP addresses inside the local network.
Can websites see my IP address?
Yes. Websites and online services normally receive an IP address as part of internet communication so that data can be returned to your connection. Servers may also record IP addresses in logs for security, analytics, troubleshooting, and other operational purposes.
How accurate is IP geolocation?
IP geolocation accuracy varies. Country-level identification is generally more reliable than determining a precise city or physical location. Mobile networks, VPNs, proxies, corporate networks, ISP routing, and geolocation database differences can all affect the result.
How can I check if my VPN changed my IP?
Check your public IP address before connecting to the VPN, then connect to the VPN and check this page again. If the visible IP address changes, your web traffic is being presented through a different public IP. You may also notice that the approximate location changes to the location associated with the VPN server.
Check Your Public IP Address
The Rubic8 What Is My IP tool provides a quick way to check the public IP address visible from your current internet connection and its approximate location. No manual input is required—simply open this page to see the available information.
If you need information about another IP address... use Rubic8's IP Address Lookup tool.
Rubic8 Editorial Team
Editorial Team
Rubic8 creates practical guides and free tools for developers, webmasters, and digital publishers. Our fast-changing technical content is reviewed against current primary documentation before publication.
