Use Android APN information
Currently, ModemManager
uses the APN list provided by the mobile-broadband-provider-info
package. It has been reported that this list is currently quite outdated. The Android project is maintaining a list of APN information and it would be better to make use of that list.
The file can be retrieved with: git clone https://android.googlesource.com/device/sample.git
and is located in the repo at /etc/apns-full-conf.xml