What Is My IP Address? Everything You Need to Know

Every time you open a website, your public IP address is automatically sent to that web server. It is how the internet knows where to deliver the page you requested. But what exactly is an IP address? What does yours reveal about you? And how do you find it?

This guide covers everything — from the basics of what an IP address is, to the difference between IPv4 and IPv6, to practical steps for finding your IP on any device and hiding it when privacy matters.

What Is an IP Address?

IP stands for Internet Protocol. An IP address is a numerical label assigned to every device that connects to a network using that protocol. Think of it exactly like a postal address: just as the post office needs your home address to deliver a parcel, a web server needs your IP address to deliver a web page to your device.

There are two types of IP address that matter for most people:

Your private IP address is assigned by your router to devices inside your home or office network — something like 192.168.1.5. Only devices on that local network can see it. It is never exposed directly to the internet.

Your public IP address is assigned by your Internet Service Provider (ISP) to your router. This is the address the entire internet sees when you browse online. It is shared by all devices on your home network simultaneously. When people ask "what is my IP address?", this is the one they mean.

What Is My IP Address Right Now?

The fastest way to find your public IP address is to use our free IP Checker tool. Your IPv4 and IPv6 addresses appear automatically the moment the page loads — no button click, no sign-up required.

You can also find your IP address directly on your device:

How to find your IP address on Windows

Open Command Prompt (press Windows + R, type cmd, hit Enter)
Type ipconfig and press Enter
Look for Default Gateway (your router's IP) and IPv4 Address (your private IP)
To see your public IP: open a browser and visit thetoolstash.com/ip-checker/

How to find your IP address on Mac

Open System Settings → Network
Click your active connection (Wi-Fi or Ethernet)
Your private IP is shown under IP Address
For your public IP, open Terminal and type: curl ifconfig.me

How to find your IP address on iPhone or Android

Go to Settings → Wi-Fi
Tap the connected network name
Your private IP appears in the network details
For your public IP, visit thetoolstash.com/ip-checker/ in your browser

How to find your IP address using a command (any OS)

Open a terminal and run:

curl https://api.ipify.org

This returns your public IPv4 address in plain text.

IPv4 vs IPv6 — What Is the Difference?

Most people are familiar with IPv4 addresses, which look like this: 203.0.113.42 — four numbers between 0 and 255, separated by dots. The problem is that IPv4 only allows about 4.3 billion unique addresses. The world's devices exhausted the supply of new IPv4 addresses around 2011.

IPv6 was created to solve this. An IPv6 address looks like: 2001:0db8:85a3:0000:0000:8a2e:0370:7334. It uses eight groups of hexadecimal digits and supports 340 undecillion unique addresses — that is a 39-digit number, more than enough for every device on Earth for the foreseeable future.

Most modern internet connections are dual-stack, meaning they support both IPv4 and IPv6 simultaneously. Our IP Checker tool shows you both if your network supports it.

| Feature | IPv4 | IPv6 | |---|---|---| | Example | 203.0.113.42 | 2001:db8::1 | | Address space | ~4.3 billion | 340 undecillion | | Notation | Decimal, dots | Hexadecimal, colons | | Exhausted? | Yes (since ~2011) | No | | Adoption | ~70% of traffic | Growing (~40%) |

What Does Your IP Address Reveal About You?

When a website or online service sees your IP address, here is what it can typically determine:

Your approximate location

IP geolocation databases map ranges of IP addresses to geographic regions. A website can usually determine:

Your country with very high accuracy (99%+)
Your city with moderate accuracy (typically within 25–50 km)
Your postal code or district in some cases

However, this is an estimate — not GPS data. Mobile users often show up at their carrier's nearest regional hub rather than their actual physical location. Satellite internet users may appear in a completely different region.

Your Internet Service Provider (ISP)

Your ISP's name is publicly associated with the IP address ranges they own. Anyone with your IP address can identify which company provides your internet service — Comcast, BT, Jio, Optus, etc.

Your timezone

Often inferred from geolocation data associated with your IP block.

Connection type

Some geolocation databases can indicate whether you're on a residential broadband, mobile data, business fibre, or data centre connection.

What Does Your IP Address NOT Reveal?

This is the important part. Your IP address does not expose:

Your name or home address
Your phone number or email
Your browsing history (that is tracked through cookies, fingerprinting, and login sessions — not IPs)
Precise GPS coordinates
Any device-specific information (model, IMEI, etc.)

Only your ISP can map a specific IP address to a specific customer account, and they can only share that information in response to a valid legal request (such as a court order or law enforcement subpoena). A random website cannot dox you using only your IP address.

Why Does Your IP Address Change?

Most ISPs assign dynamic IP addresses that change periodically. Your public IP might change when:

You restart your router (common with many ISPs)
Your ISP's DHCP lease on that address expires (usually every 24–48 hours, sometimes longer)
You switch between Wi-Fi and mobile data
Your ISP performs network maintenance

Mobile connections are especially fluid — your IP can change every few minutes as your phone connects to different cell towers or switches networks.

If you need a consistent, permanent public IP address — for hosting a web server, running a remote desktop, or setting up a security camera accessible from the internet — you would need to pay your ISP for a static IP address. These are available on most business internet plans and some residential plans for a small monthly fee.

Is Your IP Address Private Information?

Your IP address is semi-public information. It is automatically shared with every server you connect to — that is a technical requirement of how the internet works, not a security flaw. Every website you visit, every online service you use, and every email you send reveals your IP address to the recipient's server.

At the same time, your IP alone is not particularly sensitive. As covered above, it reveals your approximate location and ISP, but not your identity. The privacy concern arises when IP addresses are combined with other data points (cookies, login information, browser fingerprints) to build a detailed profile of your online behaviour.

How to Hide Your IP Address

If you want to mask your public IP address for privacy or to access geo-restricted content, there are three main approaches:

VPN (Virtual Private Network) — Best for everyday use

A VPN routes your traffic through a server in another location. Websites see the VPN server's IP address, not yours. VPNs are the most practical solution for everyday privacy and the most common way to bypass geographic content restrictions.

What to look for in a VPN:

Verified no-log policy (independently audited, not just claimed)
Based in a jurisdiction with strong privacy laws
WireGuard protocol for best speed
No IP or DNS leak on test tools

Well-regarded options: Mullvad, ProtonVPN, IVPN. Avoid free VPNs — many monetise by selling your browsing data.

Tor Network — Best for strong anonymity

Tor routes your traffic through at least three volunteer-operated relay nodes around the world. Each node only knows the previous and next hop, making it extremely difficult to trace traffic back to you. The trade-off is speed — Tor is significantly slower than a VPN and not suitable for streaming or large downloads.

Proxy Server — Lightweight alternative

A proxy routes specific application traffic through an intermediary server. Proxies are faster and simpler than VPNs but typically lack encryption and are less reliable. They are suitable for basic use cases like accessing a mildly geo-restricted website, but not for sensitive privacy protection.

IP Addresses and VPNs: Does Your VPN Actually Work?

If you use a VPN, you can verify it is working correctly by:

Turn on your VPN and connect to a server in another country
Visit our IP Checker tool
Check the location shown — it should display the VPN server's location, not your real one
If your real location or ISP appears, your VPN has a leak — switch servers or providers

This is one of the most practical uses of an IP checker tool: confirming that your VPN is masking your true IP before you do anything sensitive online.

Frequently Asked Questions

Can a hacker do anything with my IP address? Not much on its own. Knowing your IP does not give anyone access to your device or files. In theory, someone could attempt a DDoS attack (flooding your connection with traffic) or try to scan your ports, but your router acts as a firewall and blocks most incoming traffic by default. If you are concerned, restart your router to get a new dynamic IP.

Why does my IP address show a different city than where I am? IP geolocation is estimated from database mappings, not GPS. ISPs often assign IP address blocks to a central hub or regional office, so your displayed location may be the nearest city served by that ISP infrastructure — not your actual location. This is especially common on mobile networks and satellite internet.

Can websites ban me using my IP address? Yes. Many websites block access by IP address — either individual IPs associated with abuse, or entire ranges (for example, blocking VPN or data centre IPs). If you get blocked, restarting your router (to get a new dynamic IP) or using a VPN to connect from a different IP may help.

What is a blacklisted IP address? Some IP addresses end up on spam blacklists if the previous user of that dynamic IP sent spam emails or performed abusive activity. This can cause your emails to land in spam folders or your connection to be blocked by certain services. You can check if your IP is blacklisted at sites like MXToolbox.

Check Your IP Address Now

Ready to see exactly what your public IP address is and what it reveals? Use our free IP Checker tool — your IPv4, IPv6, location, ISP, and timezone appear instantly, with no sign-up and no data stored.

Read next: How to Create a Strong Password (And Actually Remember It) — because protecting your accounts goes beyond knowing your IP.