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My IP

Find your public IPv4/IPv6, reverse DNS and ASN details.

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My IP

Find your public IPv4/IPv6, reverse DNS and ASN details.

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Note: results are computed server-side from your request IP and public registries. VPN/proxies/CDNs may affect values.

Server-sideProcessed server-side

This tool uses a server-side service for processing; uploaded files or requests are not kept for long-term storage.

About

IP address basics — Your IP address is the numeric identifier used to route internet traffic. Services see your public IP as the source of requests. We display IPv4 and IPv6 separately because many connections support one or both.

Public vs private IP — Public IP is visible on the internet. Private IP is used inside local networks (e.g. 192.168.x.x). With CGNAT, public IPv4 can be shared which may affect port-forwarding and self-hosted services.

Reverse DNS (rDNS) — Reverse DNS maps IP → hostname when a PTR record exists. Some mail/security systems use it as a trust signal. No rDNS is common for consumer lines.

ASN and ISP info — ASN identifies the autonomous system that announces your IP range (ISP, hosting provider or VPN). ASN/prefix help with diagnostics but are not precise geolocation.

FAQ

›Why is the IP here different from the one on my router?
Your router shows the address on its WAN interface. If your ISP uses CGNAT, or you are behind a VPN, proxy or corporate gateway, the address the internet sees is further upstream and will not match.
›What is the difference between a public and a private IP?
A public IP is globally routable and unique on the internet. A private IP (192.168.x.x, 10.x.x.x, 172.16–31.x.x) is only meaningful inside your own network and is reused by millions of other networks simultaneously.
›What is the difference between IPv4 and IPv6?
IPv4 uses 32-bit addresses written as four numbers and has effectively run out. IPv6 uses 128-bit addresses in hexadecimal groups and has more space than will ever be needed. Most connections today run both at once.
›Why does my IP address change?
Most residential connections use dynamic addressing, so the address can change on reconnect, on a lease renewal, or whenever the ISP decides. A static address is usually a paid business option.
›My WAN IP starts with 100.64 — what does that mean?
You are behind carrier-grade NAT. That range is shared ISP space, not a public address, which is why inbound port forwarding and self-hosting do not work on that connection. Ask your ISP about a public IPv4 address or enable IPv6.
›How do I check whether my VPN is working?
Compare the ASN and operator shown here with and without the VPN connected. If it names your VPN provider rather than your ISP, the traffic is going through the tunnel. Check the IPv6 line too — a tunnel that only covers IPv4 leaks.
›What is rDNS?
Reverse DNS maps an IP back to a hostname through a PTR record. Hosting providers and mail servers usually set it; consumer connections frequently have none, or have a generic name assigned by the ISP.
›What does the ASN tell me?
It identifies the network that announces your IP range — normally your ISP, or the hosting provider or VPN operator if you are routed through one. It is a more stable identifier than the address itself.
›Why is the location wrong?
IP geolocation is a lookup against a database of allocations, not a positioning system. ISPs route through regional hubs, mobile carriers concentrate traffic at a few gateways, and blocks get reassigned. Country level is reliable; city level often isn’t.
›Is my IP address personal data?
In many jurisdictions it is treated as such, since it can be linked back to a subscriber by the ISP. Avoid posting it publicly, and be careful about screenshots that include it.
›Can a website see my private IP too?
Not through ordinary requests. Older WebRTC behaviour could expose local addresses, which is why browsers now mask them by default. This page only sees the public address on the connection.
›Do you log the addresses shown here?
No. The address is used to render the page and, if you request it, to look up rDNS and ASN details. No history is retained between visits.

Guides & tutorials

Subnets and CIDR Notation Explained, with a Calculator
What /24 and /26 really mean, how to find the network, broadcast, and usable host range, and a worked split of 192.168.1.0/26 you can follow by hand.
Jul 08, 2026 • 9 min