How accurate is IP geolocation?

Country-level accuracy is typically above 95%. City-level accuracy is lower — often 50-80% — and less reliable for mobile networks, VPNs, and cloud provider IP addresses where the IP is registered to a data center far from the user.

Can I look up my own IP address?

Yes. Leave the field empty or enter your known public IP directly to look it up.

An Autonomous System Number (ASN) identifies a network or group of networks managed by a single organisation under a unified routing policy. It is used in BGP routing and network analysis to identify ISPs, cloud providers, and large enterprises.

Why does my IP show in a different city?

IP addresses are assigned to ISPs and organisations, not physical locations. Your ISP might route traffic through a central hub in another city, so the registered location for your IP block may differ from where you actually are.

Can this tool look up private IP addresses like 192.168.x.x?

Private IP addresses (10.x.x.x, 172.16-31.x.x, 192.168.x.x) are reserved for internal networks and have no geolocation data. Entering a private IP will return no results.

IP Lookup — Free Online IP Geolocation & ISP Lookup Tool

DevTool House

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IP lookup

About IP Address Lookup

Look up the geolocation, ISP, country, city, region, ASN, and network information for any IPv4 or IPv6 address or hostname.

Last reviewed

June 23, 2026

Key Features

Looks up country, region, city, and approximate coordinates
Shows ISP, ASN, and organisation name
Supports both IPv4 and IPv6 addresses
Accepts hostnames and resolves to IP first
Useful for network troubleshooting and geo-targeting analysis

How to Use IP Address Lookup

1Enter an IP address (IPv4 or IPv6) or a hostname.
2Run the lookup to fetch geolocation and network details.
3Review the country, city, ISP, and ASN results.
4Use the findings in your app, security workflow, or network analysis.

Server log analysis example

When reviewing server logs for suspicious traffic, look up IP addresses of unusual visitors to identify their country of origin, ISP, and whether they belong to known data-center or cloud provider IP ranges.

How It Works

The tool queries an IP geolocation database to return the approximate physical and network information associated with the given IP address. Results are served through the DevTool House API service.

Privacy Notes

The queried IP address is sent to the DevTool House API to perform the geolocation lookup. No personal or account information is required.

Limitations

Geolocation is approximate and based on database records, which can be outdated or inaccurate for mobile, VPN, Tor, and cloud provider IP ranges. Country-level accuracy is generally above 95%; city-level accuracy is lower and varies by region.

Frequently Asked Questions

IP lookup

About IP Address Lookup

Look up the geolocation, ISP, country, city, region, ASN, and network information for any IPv4 or IPv6 address or hostname.

Last reviewed

June 23, 2026

Key Features

Looks up country, region, city, and approximate coordinates
Shows ISP, ASN, and organisation name
Supports both IPv4 and IPv6 addresses
Accepts hostnames and resolves to IP first
Useful for network troubleshooting and geo-targeting analysis

How to Use IP Address Lookup

1Enter an IP address (IPv4 or IPv6) or a hostname.
2Run the lookup to fetch geolocation and network details.
3Review the country, city, ISP, and ASN results.
4Use the findings in your app, security workflow, or network analysis.

Server log analysis example

How It Works

The tool queries an IP geolocation database to return the approximate physical and network information associated with the given IP address. Results are served through the DevTool House API service.

Privacy Notes

The queried IP address is sent to the DevTool House API to perform the geolocation lookup. No personal or account information is required.

IP Address Lookup

About IP Address Lookup

Key Features

How to Use IP Address Lookup

Server log analysis example

How It Works

Privacy Notes

Limitations

Frequently Asked Questions

1How accurate is IP geolocation?

2Can I look up my own IP address?

3What is an ASN?

4Why does my IP show in a different city?

5Can this tool look up private IP addresses like 192.168.x.x?

IP Address Lookup

About IP Address Lookup

Key Features

How to Use IP Address Lookup

Server log analysis example

How It Works

Privacy Notes

Limitations

Frequently Asked Questions

1How accurate is IP geolocation?

2Can I look up my own IP address?

3What is an ASN?

4Why does my IP show in a different city?

5Can this tool look up private IP addresses like 192.168.x.x?