Welcome to HamNut, your go-to destination for all things ham radio!

Our website offers a variety of resources for ham radio enthusiasts, including a call sign prefix search and a lookup tool for Maidenhead grid locators.

In addition to our website resources, HamNut also offers a free API for developers to access our data. This API allows you to easily integrate our call sign prefix search and Maidenhead grid locator lookup into your projects. Whether you're building a mobile app or a custom website, our API makes it simple to access the information you need. Thank you for choosing HamNut!

Whether you're a seasoned pro or just getting started, we have something for everyone. Thanks for visiting!