ipdata is a free and open-source ip address lookup system. It combines the results retrieved from multiple maxminddb databases to provide you general geo/isp data for version 4 addresses. The project is currently available as a publicly consumable API, an easily importable Golang package called ipdata for use in your own Go projects, and a public Docker image on DockerHub.

Please note: The hosted version of ipdata.info does not store ANY ip data that is requested. If this is a real security concern of yours I recommend either using the self hosted Binary/Docker image or importing and utilizing the package yourself.

The lookup system is extremely easy to understand and includes only one output format (JSON). What is returned to you is outlined in the below sample response. If you decide to use the package yourself the response struct can be found here.

{
    "ip_address": "123.456.789.012",
    "hostname": "example.com",
    "isp": "ISP LLC Communications",
    "country_code": "US",
    "country_name": "United States",
    "region_code": "CA",
    "region_name": "California",
    "city": "San Francisco",
    "zip_code": "94016",
    "time_zone": "America/California",
    "country_code": "US",
    "country_name": "United States",
    "geohash": "9ydqy",
    "latitude": 37.751,
    "longitude": -97.822,
    "metro_code": 123,
}

Using the API is very simple. All that's needed to lookup an IP is to send a GET request using the below URL schema to our origin.

https://ipdata.info/lookup/{ip}

To start using IPData on your local system, install Go and run go get:

$ go get github.com/s32x/ipdata

This will install the ipdata binary on your machine.

To start using IPData via Docker, install Docker and run docker run:

$ docker run -p 8080:8080 s32x/ipdata

This will retrieve the remote DockerHub image and start the service on port 8080.

package main

import (
    "log"

    "github.com/s32x/ipdata/ipdata"
)

func main() {
    // Create the ipdata client
    ic, err := ipdata.NewClient()
    if err != nil {
        log.Fatal(err)
    }
    defer ic.Close()

    // Perform the lookup
    log.Println(ic.Lookup("172.217.6.110"))
}

Copyright (c) 2022, s32x. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

• Neither the name of ipdata nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.