carrier-explode
carrier-explode 2.0 is out with a much improved backend. We're still working on our decoders, please contribute :)
Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared.
Look up a carrier's APNs, VoLTE, Wi-Fi Calling and 5G on each phone. Pick the features you need and see which carriers have them. Compare any two versions or carriers, and see what each build changed.
Get it all as JSON from the API, or as a daily CC0 dataset. The wiki explains each format.