What's my IP

See your IPv4 / IPv6, ISP, ASN, city and country, plus the headers your browser sends. Enriched on our servers, never shared.

Your IP address

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What is my IP address?

Your public IP address is the number the internet uses to route traffic back to your connection, assigned by your internet service provider. This page shows that address in both IPv4 and IPv6 form where available, along with the ISP that owns it, its autonomous system number, and the approximate city and country your provider routes it through. It also lists the request headers your browser sends, such as the user agent and preferred language. The lookup is enriched on ServerCake servers from a local database, so your address is not handed to a third-party service. IP geolocation is approximate and city-level at best, so treat the location as a routing hint rather than a precise position. Use the page to confirm your address, check IPv6 support, or see what your browser reveals about you.

Key facts

A public IP address is the single address the internet sees for an entire connection, assigned by the ISP to a router rather than to an individual device.
A private IP address such as 192.168.1.5 or 10.0.0.8 is used only inside a local network and never appears on the public internet.
IPv4 is written as four numbers such as 49.37.1.10, while IPv6 is a longer format such as 2401:4900:1c3c::1 created because the world ran out of IPv4 addresses.
An ASN (Autonomous System Number) is a network's unique identifier in the internet's routing system, for example AS55836 for Reliance Jio.
IP geolocation maps IP ranges to a rough area and is accurate to the region or city at best, often pointing to an ISP's hub rather than an exact address.

Public IP vs private IP

The address shown here is your public IP - the single address the internet sees when your connection reaches a website. It is assigned to your router or your ISP, not to your individual device.

Inside your home or office, each device has a separate private IP such as 192.168.1.5, 10.0.0.8 or something in the 172.16-172.31 range. These are reused on every network and never appear on the public internet, so a site can never see them. To find a device's private IP, check your operating system's network settings or your router's admin page, not this tool.

This is why every device on the same Wi-Fi shows the same public IP here: they all share one address as their traffic leaves the network.

Work out subnets and ranges

IPv4, IPv6, ISP and ASN explained

IPv4 is the older format written as four numbers like 49.37.x.x. The world ran short of IPv4 addresses, so IPv6 was introduced - a longer format like 2401:4900:xxxx that has room for effectively unlimited addresses. Your connection may have one or both; we show whichever your browser reaches us on.

The ISP is the company providing your connection, such as Jio, Airtel or BSNL. The ASN (Autonomous System Number) is the network's unique ID in the internet's routing system - for example AS55836 for Reliance Jio. ISP and ASN both come from public registry data tied to your IP.

None of this identifies you personally. It describes the network your traffic exits from, which is often shared by thousands of other users.

Why your IP changes and why location is approximate

Most home connections use a dynamic IP that your ISP can change on a reconnect or over time. A static IP stays fixed and is usually a paid add-on for servers. In India many broadband and mobile connections also sit behind CGNAT (Carrier-Grade NAT), so a whole group of customers shares one public IP - your address can then look the same as a stranger's on the same ISP.

The city and country shown come from IP geolocation databases, which map IP ranges to a rough area. This is accurate to the region or city at best, and often points to your ISP's hub rather than your actual street. It is an estimate, not GPS, so do not treat it as a precise location.

If you use a VPN or proxy, everything here reflects that server instead - its IP, its ISP and its location - not your real connection.

Glossary

Public IP address: A public IP address is the single address the internet sees for an entire connection, assigned by an ISP to a router rather than to an individual device. It is the address remote servers and this tool observe.
Private IP address: A private IP address, such as 192.168.1.5 or 10.0.0.8, is used only inside a local network and is never routed on the public internet. Multiple devices behind one router share the router's single public IP.
IPv4 vs IPv6: IPv4 is written as four numbers such as 49.37.1.10, while IPv6 uses a longer hexadecimal format such as 2401:4900:1c3c::1. IPv6 was created because the world ran out of IPv4 addresses.
ASN: An ASN (Autonomous System Number) is a network's unique identifier in the internet's routing system, for example AS55836 for Reliance Jio. It maps an IP to the operator that announces it.
IP geolocation: IP geolocation maps IP ranges to a rough geographic area and is accurate to the region or city at best. It often points to an ISP's hub rather than a user's exact address.
CGNAT: Carrier-grade NAT (CGNAT) is a technique where an ISP places many customers behind one shared public IP to conserve IPv4 addresses. Users behind CGNAT cannot host inbound services directly on their public IP.

Questions, answered.

Is my IP address shared with a third party?+

No. Most 'what is my IP' tools send your address to an external lookup service. ServerCake enriches it on its own servers using a local database, so your IP is never shared.

Why isn't the location exact?+

IP geolocation is approximate and city-level at best. It reflects how your ISP routes traffic, not your precise position, and can be off by a city or more.

What is an ASN?+

An Autonomous System Number identifies the network your ISP uses to route traffic on the internet. For example, AS15169 belongs to Google.

What is the difference between IPv4 and IPv6?+

IPv4 addresses look like 203.0.113.5; IPv6 are longer and use colons. IPv6 exists because the world ran out of IPv4 addresses.

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