Free tool · Geolocation, ISP, ASN, rDNS

IP Address Lookup: Location, ISP, ASN and Reverse DNS

Enter any public IP address, or let the page detect your own, and see where public geolocation databases place it, which ISP and autonomous system announce it, its reverse DNS hostname and an approximate pin on the map. Free, no sign-up, and useful before you pick a server location.

Detects your public IP
City and country estimate
ISP and ASN details
Reverse DNS hostname
Approximate map position
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In this page

How the IP Address Lookup Tool Finds Your Details
Reading Geolocation, ISP and ASN Lookup Results
Reverse DNS Hostnames and What PTR Records Reveal
Why IP Location Results Are Only Approximate
Fixing Wrong or Unexpected IP Lookup Data
IP Lookup Privacy and Public Geolocation Data
Using IP Data to Pick a VPS Server Location
IP Lookup Checks Server Admins Should Run

Look Up Any IP Address in Seconds

Every device that reaches the internet does so through a public IP address, and that number carries a surprising amount of context. It belongs to a block assigned to a network operator, it is announced to the rest of the internet by an autonomous system, and it is usually listed in commercial and community geolocation databases with an estimated country and city. The IP address lookup tool above gathers those records into one view so you do not have to query several services by hand.

When you open the page, the tool shows the address your browser connected from. That is the address websites, game servers and mail servers see when you visit them, which may belong to your home broadband line, your mobile carrier, an office gateway or a VPN exit. You can also type any other public address, such as the IP of a server you rent, a visitor from your access logs or an address that appeared in a firewall alert.

The results cover the approximate location (country, region and city where available), the internet service provider or hosting company, the ASN and its registered name, the reverse DNS hostname if one is configured, and a map marker. Each field comes from a different source, so they can disagree, and the sections below explain why and how to interpret them.

We built this lookup for practical reasons. Customers ask us which location will serve their audience best, administrators want to confirm that a newly delivered VPS shows up in the right country, and proxy and VPN operators need to know how their exit addresses appear to the services their users visit. The same lookup answers all three questions.

01How the IP Address Lookup Tool Finds Your Details

The tool starts from a single number and asks several independent sources about it. The first step is detection: when you load the page, our web server sees the address your connection arrived from and passes it back to the lookup form. If you are behind a VPN, a corporate proxy or a carrier-grade NAT, the address shown is the outermost public one, not the private 192.168.x.x or 10.x.x.x address your router assigned to your laptop.

Next, the address is matched against public geolocation databases. These datasets map IP ranges to countries, regions and cities using information from regional internet registries, network operators, user-submitted corrections and measurement data. The match returns an estimated location and, usually, coordinates that drive the map pin.

In parallel, the tool identifies the network. Every routed address block is announced by an autonomous system with its own number, the ASN, and a registered organization name. That tells you whether the IP belongs to a consumer broadband provider, a mobile operator, a university, a cloud platform or a hosting company like ours.

Finally, a reverse DNS query asks whether a hostname is mapped to the address through a PTR record. Hosting providers and ISPs often encode useful hints there, such as a city code, a customer identifier or the words static and dynamic.

None of these sources is controlled by the person using the address, and none of them is perfectly current. The value of the tool is that it puts them side by side, so a mismatch between them becomes visible instead of being hidden inside one service's guess.

02Reading Geolocation, ISP and ASN Lookup Results

Start with the country field, because it is the most reliable part of any IP geolocation result. Country assignments follow registry allocations and operator data closely, so an incorrect country is rare for fixed broadband and data-center addresses, though it is more common for mobile carriers, satellite links and recently moved address blocks.

The region and city fields deserve more caution. For a home connection they often point to the city where your ISP terminates its subscribers, which may be the nearest large metro area rather than your town. For a server they normally show the data-center city, but they can lag behind if the block was recently moved between facilities.

The ISP or organization field names the company the address is registered to or used by. When you look up a VPS, you will usually see the data-center operator or the upstream provider rather than the hosting brand you bought from, because resellers and hosting companies commonly lease address space inside a larger network.

The ASN field is the most technical but also the most stable. An AS number identifies the routing entity that announces the prefix to the world. Two addresses with the same ASN travel through the same core network, which matters when you compare routes or diagnose why a particular service blocks a range.

Treat the map as an illustration, not a street address. When a database knows only the country or region, it often places the pin at the geographic center of that area, which can land in a field, a lake or a city you have never visited. The accuracy radius, when shown, is a better guide than the pin itself.

03Reverse DNS Hostnames and What PTR Records Reveal

Forward DNS turns a name like example.com into an address. Reverse DNS does the opposite: it asks which name, if any, the owner of an IP block has assigned to a particular address. The answer comes from a PTR record in a special zone that only the holder of that address space, or someone they delegate to, can edit.

For consumer connections, the hostname is usually generated automatically and may include fragments of the IP itself, a city or exchange code and labels such as dsl, cable, fiber, pool or dynamic. Those patterns are a quick way to tell whether an address is likely to change and which part of an ISP's network it sits in.

For servers, a meaningful PTR record matters. Many mail servers reject or penalize messages from an IP whose reverse DNS is missing, generic or does not match the hostname the sending server announces. If you plan to run outbound email from a VPS, check the reverse DNS field here after delivery and make sure it resolves to your mail hostname, which should also resolve forward to the same IP.

An empty reverse DNS result is not an error in itself. Plenty of networks never configure PTR records for every address, and new allocations often start blank. If you rent a server from us and need a specific PTR value, open a support ticket with the IP and the hostname you want, and the team will tell you what is possible for that location.

Reverse DNS can also reveal a mismatch between the hostname and the geolocation country, which is useful when you are investigating suspicious log entries or deciding whether traffic really comes from where it claims.

04Why IP Location Results Are Only Approximate

An IP address is not a GPS coordinate. It is a routing label, and geolocation databases infer the physical location behind it from indirect evidence. That inference is strong at the country level and progressively weaker at the region, city and neighborhood level, which is why every result on this page should be read as an estimate.

Several things push the estimate off target. Internet service providers frequently route all subscribers in a large area through a few central gateways, so customers hundreds of kilometers away appear to be in the gateway city. Mobile operators may assign addresses from a national pool that has no relationship to the handset's location at all.

Address blocks also move. An organization can sell or transfer a range, or a hosting company can relocate a subnet from one data center to another. Registry records change quickly, but databases update on their own schedules, and some users or services keep using older copies for weeks.

VPNs, proxies, Tor exits, privacy relays and corporate networks add another layer. In those cases the lookup correctly shows the exit address and its location, but that location has nothing to do with the person behind it. If you are investigating traffic, the ASN and reverse DNS often tell you more than the city does.

Finally, different databases disagree. A streaming service, a payment processor and this tool may each consult a different provider, so it is normal to see slightly different answers for the same address. The practical rule: trust the country, verify the city, and never use IP data alone to identify an individual.

05Fixing Wrong or Unexpected IP Lookup Data

If the address the tool detects is not the one you expected, check your connection path first. A browser extension, system-wide VPN, corporate proxy or mobile hotspot will change your outward IP. Disable them one at a time and reload the page to see which hop is responsible. Some VPN apps leave split tunneling on, so the browser may use a different route than other programs.

If the IP is correct but the location is wrong, remember that the tool reports what public geolocation databases currently say, so the fix has to happen at the source. Most geolocation providers offer a correction form where the network owner, or sometimes the end user, can submit the right city. For a home line, your ISP is the party best placed to request a correction.

For servers, the data-center operator or the holder of the address block normally updates registry records and publishes a geofeed, a simple file listing prefixes and their intended locations, which many databases ingest. If a VPS from us geolocates to the wrong country, send a ticket with the IP and the result you see; we can raise it with the network owner, although database providers decide when the change appears.

If the ISP or ASN field looks unfamiliar, it is usually an upstream carrier or the facility operator rather than an error. Search for the AS number rather than the name, since organization names can be abbreviated or outdated.

If the reverse DNS field is blank or generic, that is normal for many networks. Only the address holder can change it, so contact your provider if you need a specific hostname.

06IP Lookup Privacy and Public Geolocation Data

It is reasonable to ask what an IP lookup reveals and who can see it. The short answer: the information shown here is already available to every website and service you connect to, because your public address is part of every network connection. This page simply makes that visible to you.

The geolocation, ISP and ASN fields come from public geolocation databases and routing registries, not from your device. The tool does not request your browser's location permission, does not read GPS data and does not identify a person. The best any IP database can do is name the network and an approximate area served by it.

That limitation is a feature for privacy and a caveat for investigations. An IP address can tell you that a connection came from a particular mobile operator in a particular country; it cannot tell you who held the phone. Use lookups for network diagnostics, fraud screening signals, access control and capacity planning, not for tracing individuals.

When you look up someone else's address, such as an entry from your server logs, keep local data protection rules in mind. In many jurisdictions IP addresses count as personal data when they can be linked to a person, so store and share them only as long as you need them for security or operations.

For details on how vpsandserver.com handles information submitted through our website, including this tool, see our privacy policy. If you prefer not to reveal your home IP to websites at all, a VPN or proxy hosted on a VPS changes the address that services see, and you can verify the result right here.

07Using IP Data to Pick a VPS Server Location

The most common reason our customers use this lookup is to decide where their server should live. If you already run a website, a game server or an application, your access logs contain the IP addresses of real users. Run a sample of them through the tool, note the countries and cities that appear most often, and you have a data-driven map of your audience.

Latency follows geography and routing. A server in the same country or a neighboring one usually responds faster than one on another continent, so the cluster with the most users is usually the best primary location. If your visitors concentrate in the Gulf, look at UAE VPS hosting; if they are spread across Western Europe, a central hub such as the Germany VPS location keeps round trips short to many countries at once.

ASN data helps too. If most of your users sit on two or three national ISPs, check how well a candidate data center connects to them by running our online ping test against a test IP from that location, which you can find on the network test page.

Geolocation also matters for what your server looks like to the world. Payment gateways, streaming platforms, search engines and local services treat visitors differently by country, so a business that needs a local presence, or a proxy service that needs addresses in specific markets, should choose the country whose IP ranges match that goal.

When users are split across regions, consider a second server or our multi-location VPS option rather than forcing everyone through one distant node.

08IP Lookup Checks Server Admins Should Run

Beyond choosing a location, the lookup is a quick audit tool once a server is live. Right after delivery, look up the primary IP of your new VPS or dedicated server and confirm three things: the country matches the location you ordered, the ASN belongs to the data-center network you expected, and the reverse DNS field is either blank or set to something you are happy for others to see.

If you bought additional IPv4 addresses, check each one. Addresses from different subnets can carry different geolocation history, and a range that used to belong to another country may take time to catch up in third-party databases. Spotting this early lets you choose which address to use for country-sensitive services.

Mail administrators should look up their sending IP and match its PTR record to the server hostname before sending the first message. A missing or generic PTR is among the most common reasons new mail servers land in spam folders.

Security teams can paste addresses from failed SSH logins, web application firewall alerts or abuse reports. The ASN and organization quickly show whether the traffic comes from a residential network, a cloud platform or a known hosting range, which helps you decide between rate limiting, a geo rule or a block.

VPN and proxy operators should run a lookup from inside each tunnel. If a service sees the exit IP in the wrong country, users will notice before you do.

Highlights

What the IP Address Lookup Tool Shows You

Each field below comes from a separate data source, so you can cross-check them in one place instead of jumping between services.

Automatic Public IP Detection

The page reads the address your connection arrives from, so you instantly see the IP websites and game servers see, including the exit address of a VPN or proxy if one is active.

Approximate Location on a Map

Country, region and city estimates from public geolocation databases, plotted as a pin. Treat the pin as an area indicator rather than an address, especially for mobile and satellite connections.

ISP and Organization Name

See which internet provider, mobile carrier, cloud platform or hosting company uses the address, which quickly separates residential visitors from data-center traffic in your logs.

ASN and Routing Owner

The autonomous system number and its registered name show which network announces the prefix. Addresses sharing an ASN travel the same core routes and often share reputation.

Reverse DNS PTR Lookup

The tool queries the PTR record for the address and shows the hostname, if any. Ideal for checking a mail server setup or spotting dynamic consumer ranges at a glance.

Look Up Any Public Address

Paste an IP from an access log, firewall alert or abuse report and get the same breakdown, so you can judge where traffic comes from before deciding how to handle it.

No Device Location Access

The lookup never asks for browser location permission or reads GPS data. It works only with public registry and database information tied to the IP address itself.

Audience Mapping for Hosting

Run a sample of visitor IPs through the tool to see which countries dominate your traffic, then pick the VPS or dedicated server location closest to that audience.

Public, Private and Shared IP Addresses Explained

Not every address you see on your devices can be looked up. Private ranges such as 10.0.0.0/8, 172.16.0.0/12 and 192.168.0.0/16 are reused inside millions of homes and offices and never appear on the public internet, so geolocation databases have nothing to say about them. The same goes for the 100.64.0.0/10 range that many carriers use internally for shared addressing.

If you need to know how your network looks from outside, let the tool detect your address rather than copying the one from your network settings. The difference between the two tells you whether your router performs NAT, and whether your ISP adds another layer on top.

Dedicated server IPA fixed public address assigned to one customer, like the address that comes with a VPS or dedicated server. Its geolocation and reputation are shaped by how you use it.
Dynamic consumer IPAssigned from a pool and changed periodically by the ISP. Lookups often show a generic hostname and a city that reflects the provider's gateway.
Shared or CGNAT addressMany subscribers share one public IP. Lookups describe the carrier, not the individual, and blocks applied to such addresses affect everyone behind them.
VPN or proxy exitThe lookup reports the exit server's location and network. Operators can confirm their exits geolocate to the intended country.

Pairing the IP Lookup With Ping and Speed Tools

Location data tells you where an address probably is; it does not tell you how fast it responds. For that, run the address through our ping test, which measures round-trip time from check nodes around the world, or measure your own line with the internet speed test to see download, upload, ping and jitter between your connection and our server.

Used together, the three tools answer the questions that matter before buying hosting: where your users are, how quickly a candidate data center reaches them, and whether a slow experience is caused by distance, routing or the user's own connection.

How it works

How to Run an IP Address Lookup

Check the detected address
Open the page and the tool fills in your current public IP. Disable a VPN first if you want to see your ISP-assigned address instead of the tunnel exit.
Or enter another public IP
Paste any public address from a log file, alert or server control panel into the field. Private ranges such as 192.168.x.x cannot be geolocated.
Run the lookup
Submit the form and wait a moment while the tool queries geolocation, ASN and reverse DNS sources.
Compare the fields
Read country first, then ISP and ASN, then city and the map. Use reverse DNS to confirm hostnames, and note any disagreement between sources.

FAQ

Questions about IP Address Lookup: Location, ISP, ASN and Reverse DNS

What is my IP address and how does this tool detect it?

Your public IP address is the one websites see when you connect to them. When you load this page, our web server receives the request from that address and shows it in the lookup form. If you use a VPN, proxy or corporate gateway, you will see the exit address of that service instead of the one assigned by your ISP. Private addresses from your router, such as 192.168.1.10, are never visible to websites.

How accurate is IP geolocation in this lookup?

Country results are usually reliable for fixed broadband and data-center addresses. City and region results are estimates and can be off by tens or even hundreds of kilometers, especially for mobile networks, satellite links and ISPs that route many towns through one gateway. The tool shows what public geolocation databases currently report, so treat the map pin as an approximate area rather than an exact position.

Can an IP address lookup identify a person or a home address?

No. Public geolocation databases only describe the network and an approximate area it serves. They do not contain names, street addresses or account details. Only the internet provider can link an IP and timestamp to a subscriber, and providers release that information only under their own legal procedures. This tool is meant for network diagnostics and planning, not for tracing individuals.

Why does my IP show a different city from where I am?

Most often your ISP assigns addresses from a block registered to a regional hub, so you appear in the hub city. Mobile carriers, VPNs, corporate networks and recently transferred IP ranges also produce unexpected locations. Different websites may consult different databases, so results can vary between services too. Your ISP can usually request a correction from the main geolocation providers if the error is significant.

What is an ASN and why is it shown in the results?

An autonomous system number identifies a network that announces IP prefixes to the rest of the internet using BGP. The ASN shows which organization actually routes the address, whether a broadband provider, mobile operator, cloud platform or hosting company. It is useful for spotting data-center traffic, comparing routes between providers and applying firewall rules to a whole network rather than single addresses.

Why is the reverse DNS field empty for some addresses?

Reverse DNS depends on a PTR record that only the holder of the IP block can create. Many networks leave addresses without PTR records, and new allocations often start blank. An empty field is not a fault. If you need a hostname for a server, for example for outbound email, ask the provider who assigned the address to set it up for you.

Does the lookup work for the IP of a VPS I rent from vpsandserver.com?

Yes. Paste the primary or any additional IP address from your welcome email into the tool to confirm its country, network and reverse DNS. If an address appears in an unexpected country in third-party databases, send a support ticket with the IP and the result you see, and we will raise it with the network owner. Database providers then apply updates on their own schedules.

Is the IP lookup tool free, and are there usage limits?

The tool is free to use and needs no account. It is designed for interactive, one-at-a-time lookups rather than bulk automated querying. If you need to check large lists of addresses regularly, consider running your own geolocation database or API on a VPS where you control the update schedule.

How can IP lookup results help me choose a server location?

Look up a sample of IP addresses from your website, game or application logs and tally the countries and cities that appear most. The largest cluster is usually the best primary server location, and a sizeable second cluster may justify another server. Then confirm the choice with our ping test against a data-center test IP from the network page.

Will a VPS change the IP address websites see from me?

Yes, if you route your traffic through it as a VPN or proxy. Websites will then see the VPS address and its data-center location instead of your home connection. You can verify the change by loading this page through the tunnel. Make sure your use of a proxy or VPN complies with our terms of service and the laws of the countries involved.

Know Your Audience's IPs? Pick a Server Near Them

Once the lookup shows where your users connect from, choose a VPS or dedicated server in that region from more than 100 countries. Not sure which location fits? Open a ticket and our team will help you compare.

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