A Complete status means that your phone numbers successfully migrated to Flowroute on the specified completion date. Once complete, Flowroute's Numbering and Portability team does one last check to ensure that your telephone numbers migrated successfully and that there were no issues. If you provisioned inbound routes in advance, those routes take effect immediately upon migration.
E911 and CNAM can now be provisioned to your phone numbers. For programmatic E911 and CNAM activation, see E911 and CNAM API reference pages in the developer portal.