From the newest build's carrier_list.pb.

CarrierConfig settings at most 3 other sources share.

Setting	Value	Also in
maxImageHeight	1994	GFGoogle FiAT
vonr_enabled_bool	false	GFGoogle FiAT
emailGatewayNumber	""	GFGoogle FiAT
vvm_port_number_int	0	GFGoogle FiAT
cdma_roaming_mode_int	2	GFGoogle FiAT
vonr_on_by_default_bool	true	GFGoogle FiAT
vvm_destination_number_string	""	GFGoogle FiAT
show_4g_for_lte_data_icon_bool	false	GFGoogle FiAT
carrier_auto_cancel_cs_notification	true	GFGoogle FiAT
com.google.android.dialer.carrier_supports_voip_calls	true	GFGoogle FiAT
call_barring_visibility_bool	false	GFGoogle FiAT3smarty_gb
data_warning_threshold_bytes_long	"-2"	GFGoogle FiATVerizonverizon_us
carrier_app_required_during_setup_bool	true	GFGoogle FiATGFGoogle Fifi_us