IP Info Lookup
Look up IP address information including location and ISP details. Free, fast, and works entirely in your browser with no sign-up required.
Updated
IP Address Info
Look up geolocation, ISP, ASN, timezone, and network details for any IP address or domain. Auto-detect your own IP, run bulk lookups, and export results.
About IP Address Lookup
IP lookup uses public geolocation databases to approximate the physical location of an IP address. Results reflect the ISP's registered location, not necessarily the end user's exact address.
Private IP ranges (RFC 1918):
10.0.0.0/8— Class A private range172.16.0.0/12— Class B private range192.168.0.0/16— Class C private range127.0.0.0/8— Loopback (localhost)
Data Source: Geolocation data is fetched from ipapi.co — a free, public API. Private and loopback addresses are resolved locally with no network requests.
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Frequently Asked Questions
How accurate is IP geolocation, and can it find someone's exact address?
IP geolocation is an approximation, not a street-level fix. The coordinates, city, and postal code come from databases that map an address block to the registered location of the ISP or its nearest point of presence, so the result usually lands within the right country and region but can be off by many miles inside it. It cannot reveal a person's name or exact home address, and mobile, satellite, or VPN connections often resolve to the carrier's hub rather than where the user sits. Treat the latitude and longitude shown here as a rough centroid, and the OpenStreetMap link as a general area. For the IP you enter, this tool reports the country, region, city, and coordinates the lookup service returns, clearly labelled as an approximate location so you read it with the right expectations.
What is an ASN, and why does the lookup show it next to the ISP?
An ASN, or Autonomous System Number, is the unique identifier for a network that announces a block of IP addresses to the rest of the internet through BGP routing. Where the ISP or organization name tells you who operates an address in plain English, the ASN pins down the exact routing entity behind it, which is far more reliable for filtering because one company can use several names but its traffic still rides a handful of ASNs. Security teams use the ASN to block or rate-limit an entire abusive network instead of chasing individual addresses, and to confirm whether an address belongs to a residential ISP or a hosting provider. This tool surfaces both the ISP/organization and its ASN for any public address you look up, so you can copy the network identifier straight into a firewall rule or abuse report.
Why do private IPs like 192.168.1.1 return no location?
Addresses such as 192.168.1.1, 10.0.0.5, or anything in 172.16.0.0/12 are reserved by RFC 1918 for use inside local networks and are never routed across the public internet, so no geolocation database holds a location for them. The same is true for loopback addresses like 127.0.0.1 and ::1, which always point back at the machine making the request. Because countless home and office networks reuse the identical private ranges, an address like 192.168.1.1 could be a router in millions of buildings at once, making any single location meaningless. This tool recognises these ranges locally and labels them Private or Loopback without sending a network request, while still showing the structural details such as IP version and class. Enter a public, routable address to see full geolocation, ISP, and timezone data.
What is the difference between IPv4 and IPv6 addresses?
IPv4 is the original 32-bit addressing scheme written as four dotted numbers like 8.8.8.8, giving about 4.3 billion possible addresses, a pool that has effectively run out. IPv6 uses 128-bit addresses written in hexadecimal groups separated by colons, such as 2001:4860:4860::8888, expanding the space to an astronomically large number so every device can have its own globally unique address without sharing. IPv6 also drops the legacy concept of address classes and the need for widespread network address translation. Practically, both still carry the same kind of traffic and both can be geolocated, but the notation and underlying math differ. This tool auto-detects which version you enter, shows the version and, for IPv4, the legacy class plus the binary and decimal forms of the address, so you can inspect either format and see exactly how it is structured.
Can an IP lookup tell me if an address is using a VPN or proxy?
Reliable VPN, proxy, Tor, and datacenter detection depends on commercial threat-intelligence feeds that are constantly updated with the address ranges those services use, which a free lookup does not have access to. Because of that, this tool is deliberately honest: the Privacy and Security panel is shown for context but reports basic geolocation only and does not claim a confident VPN verdict, so you are never misled by a guess. A useful manual signal is the ISP or ASN, since many VPN and hosting addresses resolve to well-known datacenter networks rather than residential ISPs, which can hint at a non-residential connection. For a definitive answer you would pair this with a paid service such as a commercial IP intelligence database. Use the lookup to gather the location, ISP, and ASN, then judge the address with that context in hand.
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About the IP Info Lookup
The IP Info Lookup is a free tool that turns any IP address or domain into a readable profile: where it geolocates, which network owns it, what timezone it sits in, and how the address itself is structured. Type an address and hit Lookup, or click My IP to detect and analyze the public address you are currently browsing from. Network engineers, sysadmins, security analysts, and curious users all reach for an IP lookup when a log line, an email header, or a firewall rule shows an address and the next question is simply: who is this, and where?
Unlike most tools on this site, an IP lookup cannot run entirely offline — geolocation lives in databases held by third parties. Public addresses are resolved through ipapi.co, and the My IP button asks ipify.org to report your address. Private and loopback ranges are handled locally with no network request at all, and nothing you search is sent anywhere except those lookup services. Lookups are saved only in your own browser (localStorage) so you can revisit them, and the history clears on demand.
What the lookup reveals
Each result is grouped into clear sections you can copy field-by-field or export whole:
- Geolocation — country, region, city, postal code, continent, and latitude/longitude, with a link to view the approximate point on OpenStreetMap.
- Network and ISP — the ISP or organization that announces the address, plus its ASN (Autonomous System Number), the network identifier used in BGP routing.
- Timezone — the IANA timezone, UTC offset, and the current local time computed live in your browser for that zone.
- Address structure — IP version (IPv4 or IPv6), legacy class (A–E), and for IPv4 the binary and 32-bit decimal forms of the address.
- Hostname — any reverse-DNS hostname the lookup service returns for the address.
Reading the privacy and security flags
The tool detects and labels addresses that are not publicly routable. Private addresses fall inside the RFC 1918 ranges — 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16 — reserved for internal networks and never geolocated. Loopback (127.0.0.1 or ::1) always points back at the local machine, and multicast ranges (224–239 in IPv4) address groups rather than single hosts. Routable public addresses get a green badge.
A VPN, proxy, Tor, and datacenter panel is shown for context, but the tool is honest about its limits: those signals require a commercial threat-intelligence database, so the free lookup reports basic geolocation only and does not claim a confident VPN verdict. Treat any location result as an approximation of the ISP's registered point of presence, not the exact street address of a person.
Working with many addresses at once
Beyond single lookups, the Bulk Lookup tab accepts up to 10 addresses at a time — one per line or comma-separated — and queries them in sequence with a short pause between each to stay within the free API's rate limits. Results land in a scannable list you can export as JSON or CSV, which is useful for triaging a block of suspicious IPs from an access log or documenting the network footprint behind a set of domains. Single results export the same way, and Copy All drops every field as plain text for pasting into a ticket or report.
Why an IP profile matters
An IP address is the return label on every packet, and reading it answers practical questions: a sign-in from an unexpected country may flag a compromised account; a comment-spam wave traced to one ASN can be blocked at the network level; a CDN misconfiguration shows up when the resolved location is nowhere near your users. Quick sample buttons for well-known resolvers — Google's 8.8.8.8, Cloudflare's 1.1.1.1, and OpenDNS — let you see a full result instantly before running your own.