# Data changes to minFraud Legacy web services

_May 31, 2022_

> **⚠️ Warning**
>
> This release note is more than two years old and may no longer reflect
> current behavior. View the
> [latest release notes](/minfraud/release-notes/).

In line with the
[announcement on our blog from 2020](https://blog.maxmind.com/data-changes-to-geoip-legacy-and-minfraud-legacy-web-services-in-may-2022/),
there will be several changes to the data in our GeoIP Legacy web services
beginning today. The following web services are affected:

- minFraud Legacy Standard or Premium

The following data changes have been made:

1. **Region codes:** The legacy web services historically returned region codes
   in the FIPS 10-4 standard (for all countries except for the US and Canada).
   Now, region codes worldwide will be returned in the ISO 3166-2 standard.
1. **Area codes:** Area code fields will now return blank.
1. **Country/Region/City names:** Country, region, and city names will now come
   from [GeoNames](https://www.geonames.org/).
1. **IPv6:** The minFraud Legacy services will now provide GeoIP Location Check
   outputs for IPv6 addresses.

For more information, read the
[full announcement on our blog from 2020](https://blog.maxmind.com/data-changes-to-geoip-legacy-and-minfraud-legacy-web-services-in-may-2022/).

Please note that
[associated changes to the GeoIP Legacy web services are also being made](/geoip/release-notes/2022-05-31-data-changes-to-geoip-legacy-web-services/).