IP Lookup
An IP lookup reads the public record behind an IP address: the country, city and internet service provider (ISP) its block is registered to. It returns network data, not personal data. Querying 8.8.8.8, for example, returns AS15169 in the United States — the network Google operates — with no name and no street address.
Location
Network
Bulk IP lookup
Paste up to 20 addresses, one per line, and export country, city, ISP and ASN as CSV. The free geolocation service allows roughly 1,000 lookups a day and answers with HTTP 429 beyond that, so the list is spaced at about 1.5 s per address and can still be throttled at busy times.
| IP | Country | City | ISP | ASN |
|---|---|---|---|---|
Lookups run in your browser and go straight to the ipapi.co geolocation API, which sees your IP and every address you query and may log them. FreeWebTools stores neither.
What do the IP address ranges mean?
Only public addresses return a lookup result. Everything else belongs to a private, local or reserved block and is meaningful only inside your own network.
| Range | What it means | Can it be looked up? |
|---|---|---|
| 10.0.0.0/8 | Private network (RFC 1918) — company and campus LANs | No |
| 172.16.0.0/12 | Private network (RFC 1918) — VPN, Docker and office subnets | No |
| 192.168.0.0/16 | Private network (RFC 1918) — home routers and Wi-Fi clients | No |
| 100.64.0.0/10 | Carrier-grade NAT (RFC 6598) — shared between subscribers | No, only the ISP exit IP is visible |
| 127.0.0.0/8 | Loopback — the device itself (localhost) | No |
| 169.254.0.0/16 | Link-local (RFC 3927) — DHCP failed, no address assigned | No |
| 224.0.0.0/4 | Multicast — a group of receivers, not one host | No |
| 192.0.2.0/24 · 198.51.100.0/24 · 203.0.113.0/24 | Documentation and examples (RFC 5737) — reserved for manuals, never routed | No |
| 1.0.0.0 – 223.255.255.255 | Public IPv4 — every address in this span that is not in a block listed above or in the IANA special-purpose registry (192.0.2.0/24, 198.18.0.0/15, 198.51.100.0/24, 203.0.113.0/24) | Yes: country, city, ISP, ASN |
| ::1/128 | IPv6 loopback — the device itself | No |
| fe80::/10 | IPv6 link-local — same network segment only | No |
| fc00::/7 | IPv6 unique local address (ULA) — private IPv6 network | No |
| 2000::/3 | Public IPv6 — globally routable unicast, apart from documentation blocks such as 2001:db8::/32 | Yes: country, city, ISP, ASN |
What information does an IP lookup reveal?
You do get
- Country and region the block is registered to
- Approximate city, postal code and coordinates
- ISP or hosting company and its ASN (e.g. AS9121)
- Time zone and UTC offset
- Whether the address is IPv4 or IPv6
You do not get
- The subscriber name or street address
- Phone number, e-mail or ID document
- Browsing history or the sites visited
- The exact device behind a shared or CGNAT address
Why does my IP address show a different city?
Geolocation databases map an address block to the place where the ISP registered it, not to your home. On mobile and CGNAT connections the traffic leaves through a central gateway, so the result can be hundreds of kilometres away. Country is reliable; city is an estimate and never a street address.
What is the difference between IPv4 and IPv6?
| Property | IPv4 | IPv6 |
|---|---|---|
| Length | 32 bits, 4 numbers | 128 bits, 8 blocks |
| Notation | 8.8.8.8 | 2001:4860:4860::8888 |
| Range per part | 0–255 (decimal) | 0000–ffff (hexadecimal) |
| Total addresses | ≈ 4.3 billion | ≈ 3.4 × 10³⁸ |
How do I change or hide my IP address?
- Restart the router: on a dynamic connection the ISP usually hands out a new address within a few minutes.
- Use a VPN: the lookup then returns the VPN exit server, and this page is the quickest way to confirm the tunnel works.
- Switch networks: mobile data and Wi-Fi go through different providers, so the ASN changes.
- Ask for a static IP: providers sell one as a paid option when you need to host a service.
About IP Lookup
Look up information about any IP address. Find location, ISP, and network details. Check your own IP or research any public IP address.
Use Cases
How to use
Your IP is shown automatically
Enter any IP to look up
View location and ISP info
See additional network details
Pro Tips
- VPNs will show VPN server location instead
- IP location is approximate, not exact address
- Useful for troubleshooting connection issues
Frequently Asked Questions
City-level is usually accurate. Exact addresses cannot be determined from IP alone.
ISP databases may be outdated, or you're using a VPN/proxy.
Your public IP is visible to websites you visit. Use a VPN for privacy.
Sources and standards
- RFC 1918 — Address Allocation for Private Internets (IETF)
- RFC 6598 — IANA-reserved IPv4 prefix for shared address space (CGNAT)
- RFC 4291 — IP Version 6 Addressing Architecture
- RFC 5737 — IPv4 address blocks reserved for documentation
- IANA IPv4 Special-Purpose Address Registry
- ipapi.co — the geolocation service behind these results; its free tier allows up to 1,000 lookups a day and then returns HTTP 429