preferredDomesticCarrierCode property
The carrier selection code that is preferred when calling this phone number domestically. This also includes codes that need to be dialed in some countries when calling from landlines to mobiles or vice versa. For example, in Columbia, a "3" needs to be dialed before the phone number itself when calling from a mobile phone to a domestic landline phone and vice versa.
Note this is the "preferred" code, which means other codes may work as well.
Implementation
@$pb.TagNumber(7)
$core.String get preferredDomesticCarrierCode => $_getSZ(6);