Our network data set is used to produce the ASN field in our API response, and also the data on the ASN details pages. In addition to the ASN fields, we also have more detailed organization data, such as the IP operator and their domain, that's avaialble as an optional API add-on, or data download. This proprietary data is automatically updated every day.
Originally our API used MaxMind data, but we've been very busy working on creating our own geolocation data. We've made a lot of progress, and we now use our own data to service around half of all requests. We do still fallback to MaxMind data though, which requires us to state:
This product includes GeoLite2 data created by MaxMind, available from http://www.maxmind.com.
Later this year we hope to exclusively be using our own proprietary geolocation data, which will be more accurate that the MaxMind data, and updated much more frequently. We currently update our geolocation data at least once a month, and up to once a week.
We have proprietary mobile carrier data, that gives you the common carrier name for an IP address that belongs to a mobile network. This is available as an optional add-on for our API, or as a download. It's updated once per month.