What Is My IP Address?

What is an IP address, really?

An IP (Internet Protocol) address is the postal address of the internet. Every time your phone, laptop, smart TV, or game console connects to a website, it needs a number that tells the rest of the internet where to send the reply. That number is your IP address. Without it, the web page you just requested would have nowhere to go. The system has been in continuous use since the early 1980s, when the original IPv4 standard was published as RFC 791, and it remains the backbone of almost every network you touch today.

There are two flavors in active use. IPv4 addresses look like 192.168.1.42 — four numbers between 0 and 255 separated by dots, for a total of about 4.3 billion possible combinations. We ran out of fresh IPv4 blocks years ago, which is why most home networks today share a single public IPv4 between every device using a trick called Network Address Translation (NAT). IPv6 addresses look like 2001:0db8:85a3::8a2e:0370:7334 — eight groups of hexadecimal digits — and the address space is so enormous (around 340 undecillion addresses) that effectively every grain of sand on Earth could have its own. Your device almost certainly supports both; which one a given website uses depends on its setup.

Public vs. private IPs — and why they look different

The IP shown at the top of this page is your public IP: the address your router presents to the wider internet. Inside your home or office, each device also has a private IP assigned by the router (commonly in the 192.168.x.x or 10.x.x.x ranges). Private IPs are reused across millions of households because they never leave the local network. When your laptop asks for a web page, the router rewrites the outgoing request to use the public IP, remembers which internal device asked, and forwards the reply back to it. That's NAT in action, and it's the reason every device in your home appears to share one address from the outside.

This also explains a question that comes up constantly in our inbox: "why does my phone show a different IP than my laptop?" If they're on different networks (your phone on cellular data, your laptop on Wi-Fi), they truly do have different public IPs because they're routed through different ISPs. If they're on the same Wi-Fi network, they'll share a public IP — but their private IPs differ. We walk through how to find both kinds in our guide to finding your IP on any device.

What does your IP reveal about you?

On its own, an IP address is not a name and not a precise location. What it does reveal is the ISP that owns the address block, the approximate region the block is registered to (usually city-level, sometimes only country-level), and rough metadata like the timezone. That's enough for websites to serve you content in the right language, restrict streaming catalogs by country, or block traffic from regions associated with abuse. It is not enough, by itself, to identify you personally — that requires combining your IP with cookies, an account login, or a subpoena to your ISP.

That nuance matters. Scam pop-ups love to terrify visitors with phrases like "WARNING: hackers have your IP address!" They almost always show your real, public IP — which proves nothing, because every website you visit sees the same number. Knowing your IP does not give an attacker remote control of your computer. What it can do, in unusual cases, is enable targeted denial-of-service attacks against your home connection or help advertisers correlate your activity across sites. Our complete guide to "what is my IP" goes deeper on the threat model.

When you should check your IP

There are a handful of moments when looking up your own IP is genuinely useful. The most common, by far, is verifying that a VPN or proxy is actually working. Turn the VPN on, reload this page, and the IP and country should change to the VPN's exit server. If they don't, the VPN has failed silently and your real address is still leaking. The second-most-common is whitelisting: many work tools, databases, and game servers require you to send the administrator your current public IP so they can add it to an allow-list. Reading it off the top of this page is faster than digging through router settings.

Other useful moments include troubleshooting why a website thinks you're in the wrong country, confirming that your ISP rotated your dynamic IP overnight, checking whether your connection has reached IPv6 yet, and comparing the IP your phone uses on cellular versus Wi-Fi. None of these require any software install — every answer is right there in the card at the top of this page.

How to protect your IP address

For most everyday users, the practical privacy steps are modest: keep your router firmware up to date, use WPA2 or WPA3 on your Wi-Fi, and enable your operating system's built-in firewall. If you want to hide your IP from the websites you visit — either for privacy or to access region-locked content you're entitled to — a reputable VPN replaces your public IP with the VPN provider's IP for the duration of the session. The Tor Browser goes further, routing your traffic through three volunteer relays so no single party (not even Tor) can link your IP to the sites you load.

What you do not need to do is panic, pay for an "IP shield" subscription, or install a browser extension promising to "hide your IP from hackers." Most of those products are at best redundant and at worst malware. The threat from a leaked public IP is real but narrow; the steps that actually reduce it are boring and free.

Common questions about IP addresses

Want to go deeper? Start with our blog, where every article is written and reviewed by a human contributor. The most popular starting points are IPv4 vs IPv6, public vs private IP, and how VPNs hide your IP.