What is my ip address

Last updated: April 1, 2026

Quick Answer: Your IP address is a unique set of numbers that identifies your device on the internet, allowing you to send and receive data. You can find it using your device's network settings or by visiting any 'what is my IP' website.

Key Facts

What Does Your IP Address Do?

Your IP (Internet Protocol) address functions as a digital mailing address for your device. When you visit a website, send an email, or stream video, your IP address tells the receiving server where to send the requested information back to you. Without a unique IP address, the internet couldn't route data packets to the correct destination among billions of connected devices worldwide.

Types of IP Addresses You May Have

Most internet users have multiple IP addresses. Your device has a local IP address used within your home or office network to communicate with other devices like printers and smart home devices. Your public IP address, provided by your Internet Service Provider, is what the outside world sees when you connect to the internet. Additionally, websites, email servers, and online services all have their own IP addresses that your device connects to.

How to Find Your IP Address

Finding your IP address depends on which one you need. To find your local IP address on Windows, open the Command Prompt and type ipconfig. On Mac and Linux systems, use the terminal command ifconfig or hostname -I. To discover your public IP address, simply visit any IP lookup website or search "what is my IP" in any search engine—your public IP will be displayed instantly.

IP Address Format and Structure

IPv4 addresses follow a dotted-decimal notation with four octets, each ranging from 0 to 255, for example 203.0.113.42. This allows for roughly 4.3 billion possible IPv4 addresses. Newer IPv6 addresses use hexadecimal notation with eight groups of four characters, such as 2001:0db8:85a3:0000:0000:8a2e:0370:7334, enabling trillions of unique addresses for the growing number of internet-connected devices.

Related Questions

How do I find my IP address on my phone?

On Android, go to Settings > About Phone > Status to view your IP address. On iPhone, open Settings > Wi-Fi, tap the network you're connected to, and look for the IP Address field. Both show your local network IP.

How do I find my private IP address?

You can find your private IP address by opening Command Prompt (Windows) and typing 'ipconfig', or Terminal (Mac/Linux) and typing 'ifconfig'. Alternatively, access your device's network settings directly to view the local IP assigned by your router.

What is the difference between public and private IP addresses?

Private IP addresses are used only on local networks and are not visible on the internet; public IP addresses are assigned by your ISP and are visible to websites and internet services you connect to. Multiple devices on your home network can share one public IP.

Can websites see my IP address?

Yes, every website you visit can see your public IP address in its server logs, which is unavoidable and happens automatically when your browser connects. This is similar to how a store receives a phone number when you call—the recipient always sees your source address. Websites use this information for troubleshooting, security monitoring, and analytics. If you want to hide your IP address from websites, you must use a VPN, proxy, or Tor browser, though this comes with trade-offs in speed and convenience.

Is it safe to share my IP address?

Your public IP address is visible to all websites you visit and is generally not considered sensitive. However, avoid sharing it on public forums as malicious users could potentially use it for attacks. Your private network IP should not be shared outside your home network.

Why does my IP address change?

Your Internet Service Provider dynamically assigns IP addresses rather than permanently assigning them to individual customers. This allows ISPs to efficiently manage their limited pool of IP addresses across many users. Restarting your modem typically triggers a new IP assignment.

Can someone find my location from my IP address?

Your IP address can be traced to approximate geographic location (usually city or region level) but not to your exact home address. Your ISP and some websites can see your IP, but precise location requires additional information.

Why does my IP address change?

Most ISPs assign dynamic IP addresses using DHCP leases that last 24 hours to 30 days, after which your address is renewed and may change. ISPs do this to efficiently manage their limited pool of IP addresses among all customers rather than permanently allocating addresses to individuals. When your modem restarts or your lease expires, you receive either the same IP or a new one from the available pool. Static IP addresses can be purchased from ISPs for an additional fee if you need a permanent address.

What does a static IP address mean?

A static IP address remains the same over time, while a dynamic IP address changes periodically. Most home users have dynamic IPs that change when they restart their router or after a certain time period. Businesses often use static IPs for servers and services that need consistent addresses.

Is my IP address private?

Your public IP address is visible to any website you visit, but it's not considered highly sensitive. However, your private IP address on your home network is only visible to devices on that network. ISPs can associate your public IP with your account if legal demands are made.

Why does my IP address change?

Most ISPs assign dynamic IP addresses that change periodically, usually when you restart your router or after a certain time period. Static IP addresses are available for a fee and don't change, but dynamic IPs are standard for home internet users.

Is my local IP address the same as my public IP?

No, these are completely different addresses serving different purposes. Your local (or private) IP address is assigned by your home router and used only within your network, typically in the 192.168.x.x, 10.x.x.x, or 172.16.x.x ranges. Your public IP address is assigned by your ISP and is visible on the internet. Your router performs Network Address Translation (NAT) to translate between these, allowing all your devices to share one public IP address.

Can I trust IP geolocation services?

IP geolocation services are reasonably accurate for country-level location (over 99%) and region/state level (85-95%), but city-level accuracy typically ranges from 55-70% depending on data available. These services cannot determine your exact home address, street, or precise coordinates. Accuracy is lower in rural areas where IP address databases have fewer reference points, sometimes placing your location 50+ miles away from your actual position.

How does my ISP know which IP address is mine?

Your ISP maintains a customer database that records which IP addresses are assigned to which customer accounts at any given time. When you connect to the internet, your modem uses DHCP to request an IP address from the ISP's DHCP server, which logs this assignment to your account. This creates a permanent record linking your IP address to your identity and service address, allowing ISPs to identify customers and enabling law enforcement to subpoena this information during investigations.

Sources

  1. Wikipedia - IP AddressCC-BY-SA-4.0
  2. Cisco - IP Addressing OverviewPublic Domain