What Is an IP Address?
An IP address (Internet Protocol address) is a unique numerical label assigned to your device by your Internet Service Provider (ISP) when you connect to the internet. Think of it as your device’s postal address on the internet — it identifies where data should be sent and received.
Every website you visit, every video you stream, and every message you send uses your IP address to route information back to your device. Without it, the internet would not know where to deliver the data you requested.
Our What Is My IP tool shows your current public IP address instantly — no signup, no data collection, fully private.
Public IP vs. Private IP: The Critical Difference
Public IP Address
- Assigned by your ISP.
- Visible to every website and server you connect to on the internet.
- Unique across the entire internet.
- This is the address our tool displays when you visit.
Private IP Address
- Assigned by your home router to devices on your local network (phone, laptop, smart TV).
- Only visible within your home or office network.
- Common private IP ranges: 192.168.x.x, 10.x.x.x, 172.16.x.x – 172.31.x.x.
- Websites cannot see your private IP — they only see your public IP.
Analogy: Your public IP is like your building’s street address. Your private IP is like your apartment number — only relevant inside the building.
IPv4 vs. IPv6: What Is the Difference?
| Feature | IPv4 | IPv6 |
|---|---|---|
| Address format | 32-bit, 4 decimal numbers (e.g., 192.168.1.1) | 128-bit, 8 hexadecimal groups (e.g., 2001:0db8:85a3::8a2e:0370:7334) |
| Total addresses | ~4.3 billion | 340 undecillion (virtually unlimited) |
| Adoption | Universal — every device supports it | Growing — most modern devices and ISPs support it |
| Why the switch? | The world exhausted the IPv4 address pool | IPv6 solves the shortage and adds features |
Most devices today support both IPv4 and IPv6 (dual-stack). If your ISP provides both, your device will use whichever the destination server supports. Our tool shows both your IPv4 and IPv6 addresses when available.
What Your IP Address Reveals About You
Your IP address can reveal:
- Approximate City and Region — Typically accurate to your city or nearby metro area.
- Country — Almost always accurate.
- Internet Service Provider (ISP) — The company providing your internet connection.
- Connection Type — Whether you are on a residential, business, or mobile connection.
- VPN/Proxy Usage — If your IP belongs to a known VPN provider, it is flagged.
Your IP address cannot reveal your exact home address, your name, your phone number, or personal details. Only your ISP can link your IP to your account, and they require a legal request (subpoena) to disclose that information.
How to Find Your Private (Local) IP Address
Your private IP cannot be detected by websites. To find it manually:
- Windows: Open Command Prompt (cmd) and type
ipconfig. Look for “IPv4 Address.” - Mac: System Settings → Network → select your connection → look for “IP Address.”
- iPhone: Settings → Wi-Fi → tap the (i) next to your network.
- Android: Settings → Network & Internet → Wi-Fi → tap your connected network.
- Linux: Open terminal and type
ip addr showorifconfig.
Why Does My IP Address Change?
Most home internet connections use dynamic IP addresses — your ISP reassigns your IP periodically from their pool, sometimes daily or weekly. This is normal and done to efficiently manage limited IPv4 addresses.
If you need a permanent IP that never changes, you can request a static IP from your ISP (usually for an extra monthly fee), or use a VPN with a dedicated IP option.
Common reasons your IP changes:
- Your router restarts or reconnects.
- Your ISP rotates its address pool.
- You switch networks (home Wi-Fi → mobile data → office).
- You connect through a VPN.
VPNs: How to Hide or Change Your IP
A VPN (Virtual Private Network) routes your internet traffic through an encrypted tunnel to a server in another location. To any website you visit, your IP appears to be the VPN server’s IP — not your real one.
What a VPN Does
- Hides your real IP — Replaces it with the VPN server’s IP.
- Changes your apparent location — If the VPN server is in the UK, websites see a UK IP.
- Encrypts your traffic — Your ISP cannot see what sites you visit.
- Bypasses geo-restrictions — Access content available in other countries.
How to Check If Your VPN Is Working
Visit our What Is My IP tool before and after connecting your VPN. If your IP address and location change to match the VPN server, the VPN is working correctly. If your real location still shows, you may have a DNS leak or the VPN connection failed.
IP Security: Should You Share Your IP?
Generally, avoid sharing your public IP address in public forums, livestreams, or with untrusted parties. While an IP alone cannot give someone access to your device, it can be used for:
- DDoS attacks — Overwhelming your connection with traffic.
- Targeted harassment — Someone deducing your approximate location and ISP.
- Bans or blocks — Some gaming servers or websites block specific IPs.
For most casual internet use by ordinary consumers, your IP is visible to every website you visit and this is normal. The risk is low for everyday browsing, but exercise caution when sharing it publicly.
Static vs. Dynamic IP: Which Do You Have?
- Dynamic IP (most common): Changes periodically. Used by nearly all home internet connections. Free by default from ISPs.
- Static IP: Never changes. Used by businesses hosting servers, remote workers needing consistent access, and some smart home setups. Usually costs extra.
How to check: Visit What Is My IP today, note the address, and check again tomorrow or after restarting your router. If it changed, you have a dynamic IP.
What Is My IP — Instant, free, private. Shows your IPv4, IPv6, location, ISP, VPN status, and more. No signup required.