Roughly where the network is
The country is nearly always right. The city is the location the network operator registered for that block — often a regional hub, sometimes the head office, and not the street the user is sitting on.
What is my IP address?
Your IP address
Checking…
That is the address the internet sees you at right now. Below you can look up any other IPv4 or IPv6 address — a website’s, a mail server’s, one from your firewall log — and see who runs it, where it is registered and what its reverse DNS name is. Free, no account.
IP lookupLook up any IP address
Paste an IPv4 or IPv6 address — a server’s, a visitor’s, or one you pulled out of a log.
We keep no record of who looked up what. The answer for an address is cached for a day — by address, not by visitor — so repeat checks are instant, and a short-lived counter stops the tool being scraped.
What you getWhat an IP lookup can and cannot tell you
It is worth being clear about this up front, because the internet is full of tools implying rather more than they know.
Who runs it
The ISP or hosting company the address is assigned to, and the AS number their network is routed under. This is the part that tells you whether an address is a home connection, an office, or a server in a data centre.
Its reverse DNS name
The name the address answers to when asked backwards. Mail servers care about this a great deal, and a missing or generic PTR record is a common reason mail from a new server is refused.
Its timezone
Useful when a log entry is in UTC and you are trying to work out what hour of the day it was where the request came from.
Not a name or an address
No lookup returns who a person is. That information sits with the ISP and is released to law enforcement on a court order, not to a web form.
Not proof of anything
A VPN, a proxy, a mobile carrier’s gateway or a CDN edge all report the location of the network rather than the person using it. Treat the answer as a strong hint, never as evidence.
Reading the resultWhat each field means
The fields most people have a use for, and what they are actually telling you.
| Field | What it means for you |
|---|---|
| Hostname | The reverse DNS (PTR) name for the address. A server with no PTR, or one still on the hosting company’s default name, gets its mail treated with suspicion. |
| ISP and organisation | Who the block is assigned to. A hosting company here and a residential ISP here mean very different things about the traffic you are looking at. |
| ASN | The autonomous system the address is routed under — the unit of the global routing table. Two addresses on the same ASN are on the same operator’s network even if they look unrelated. |
| Country, region, city | Where the block is registered. Country is reliable, region usually is, city is the weakest of the three and is best read as “this part of the country”. |
| Latitude and longitude | The centre point of the area the block is attributed to, not a pin on anybody’s roof. For a whole country’s allocation it is often the geographic centre of the country. |
| Timezone | The zone that applies at that registered location, with the current local time worked out from it. |
In BangladeshWhy your IP address says Dhaka when you are in Chattogram
The five things people here ask us most often once they have seen their address.
The city is where the block was registered, not where you are sitting
Geolocation does not track anybody. It reads what the network operator recorded when the address block was allocated to them, and an operator registers a whole block to a single address — usually its head office. Where that office is in Dhaka, as it is for a great many providers here, every connection on that block reads as Dhaka. Your traffic is not being routed through the capital; the paperwork simply says Dhaka. Country is the part you can rely on.
On mobile data, the address is not yours alone
Mobile networks serve far more connections than they hold public addresses, so subscribers are put behind carrier-grade NAT and share one public address between many people. That has two consequences worth knowing. The address you see is shared, so nothing about it identifies you personally — and it sits wherever your operator routes that gateway, which may be nowhere near you. Switching between mobile data and Wi-Fi will usually show you two completely different addresses.
Your broadband address probably changes on its own
Most home and small-office connections are handed a dynamic address, which can change when the router restarts or the session renews. That is normal and costs nothing. If you need one that stays put — to put yourself on a firewall allow-list, to reach an office VPN, or because a client asked for a fixed address — that is a static address, and it is something you request from whoever provides the connection.
Looking up a server rather than a browser
The box above takes any address, so it works just as well on a server’s. That is the quicker way to answer “where is this host actually running”, to check whether a mail server has a reverse DNS name before you wonder why its mail keeps landing in spam, or to find out who owns an address that keeps appearing in a firewall log. If you want a machine with an address of its own, every VPS plan includes one dedicated IP.
If your address is full of colons, you are on IPv6
An address like 2400:adc1:… is IPv6; the familiar 103.106.239.10 form is IPv4. IPv6 exists because the world ran out of the old ones, and Bangladeshi networks have been turning it on gradually, so which of the two you see depends on your connection and sometimes on the moment. Both work in the lookup above, though geolocation data for IPv6 blocks tends to be thinner — often a country and an operator without a city.
FAQIP address questions, answered
What is an IP address?
An IP address is the number the internet uses to route traffic to you, in the same way a postal address routes a letter. Every device that connects gets one, either an IPv4 address written as four numbers like 103.106.239.10, or an IPv6 address written as groups of letters and numbers separated by colons. Your internet provider assigns the one the rest of the world sees.
Is my IP address private information?
Not in the way a phone number is. Every website you visit necessarily sees it, because it is how the reply reaches you. What it reveals is your provider and roughly your region — not your name, your address or your identity. Only your ISP can connect an address to a subscriber, and it does that under legal process. Sharing it in a support ticket so somebody can allow-list you is entirely normal.
Why does my IP address keep changing?
Because most connections are given a dynamic address that can be reassigned when the router restarts or the session renews. On mobile data it can change more often still. If it needs to stay the same, ask your provider for a static address.
How do I change or hide my IP address?
Restarting your router will often get you a new one if your connection is dynamic. To hide it from the sites you visit you would use a VPN or a proxy, which substitutes its own address for yours — that is why this page will report the VPN’s location rather than yours while one is connected.
How accurate is IP geolocation?
Country-level accuracy is very good — in the high nineties as a percentage. City-level accuracy is a different matter: the figure comes from what the network operator registered for that block, so it can name the city where the ISP has its regional equipment rather than where the customer is, and it can be hundreds of kilometres out. Use it to tell Dhaka from Dallas, not one neighbourhood from the next.
Why does my own address show the wrong city?
Almost always because your ISP registered the whole block to one location, or because you are on mobile data and leaving the network through a gateway somewhere else entirely. It is the network being described, not you.
What is an ASN?
An Autonomous System Number identifies one network operator in the global routing table. Every ISP and hosting company of any size has at least one. When you see the same ASN behind two addresses, the same organisation is announcing both of them to the internet.
Why does the hostname sometimes come back empty?
Because reverse DNS is optional and plenty of operators never set it. It is not a fault with the address; it just means no PTR record is published for it. If it is your own server and you send mail from it, it is worth setting.
Can I find out who is behind an IP address?
Not from here, and not from any similar tool. The link between an address and a subscriber is held by the ISP and released under legal process. What is public is the organisation the block is assigned to, which for a hosting company is the company itself rather than its customer.
Does this work for IPv6?
Yes. Paste an IPv6 address in the same box. Geolocation data for IPv6 blocks is generally thinner than for IPv4, so you may get a country and an operator without a city.
Where does the data come from?
The location, ISP and ASN come from a public IP geolocation service. The hostname is a live reverse DNS query made at the moment you ask. Nothing about your lookup is kept beyond a one-day cache of the answer itself, which is what makes a repeat check instant.
Checking a domain rather than an address?
The WHOIS tool shows a domain’s registration, expiry and status alongside its live DNS records — and every result downloads as a dated PDF report.