Default What are those apps/services

Trying to figure out what those are, what they do, and if its safe to freeze some of them.
Thanks

SprintLocationQueryService.apk in system/app
SprintExtensionProvider.apk in system/priv-app
SprintTouch.apk in system/priv-app
SprintExtension_signed.apk in system/priv-app
Licenceprovider.apk in system/app
com.lge.sui.widget 5.0.10
boardcontentprovider.apk in system/app