IP Address Lookup
See your public IP address (IPv4 or IPv6), the user-agent your browser is sending, and the basic request headers our server receives.
Quick answer: See your public IP address (IPv4 or IPv6), the user-agent your browser is sending, and the basic request headers our server receives.
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Frequently asked questions
- What is my IP address?
- Your public IP is shown at the top of this page. It's the address websites and services see when you connect to them.
- What's the difference between IPv4 and IPv6?
- IPv4 uses 32-bit addresses (e.g. 203.0.113.5). IPv6 uses 128-bit addresses (e.g. 2001:db8::1) and was designed to fix the IPv4 address shortage.
- Why does my IP change?
- Most home ISPs hand out dynamic IPs that rotate every few hours/days. Mobile networks often change your IP whenever your phone reconnects to a tower.
- What is a dynamic IP?
- An IP that's assigned for a limited time and may change later, as opposed to a static IP that stays the same. Dynamic IPs are cheaper for ISPs to manage.
- Can a website see my IP?
- Yes — every TCP/HTTP connection includes the source IP. This page shows you exactly what our server sees.
- What is NAT?
- Network Address Translation lets many devices on a private LAN share one public IP. Your home router does this.
- Why do I see a different IP on mobile?
- Mobile carriers use Carrier-Grade NAT (CGNAT) — they assign you a private IP and translate it to a shared public IP per region/cell.
- Can I hide my IP?
- Yes — a VPN routes your traffic through their server, so sites see the VPN's IP. Tor offers stronger anonymity at the cost of speed.
- What is an ASN?
- Autonomous System Number — an identifier for a network on the global routing table. Each big ISP, cloud provider, and university has one.
- How accurate is IP-based location?
- City-level accuracy is rough at best — IPs are assigned in blocks that don't align with cities. Mobile and CGNAT IPs are especially unreliable.