Amazon SNS now supports sending SMS messages to US destinations using ten-digit long codes and toll-free numbers

Amazon Simple Notification Service (Amazon SNS) now supports ten-digit long codes (10DLC) and toll-free numbers (TFN) for sending SMS text messages from businesses to consumers in the US. These new origination ID types enable SNS customers to send messages using a phone number that is unique to them, and provide improved delivery rates.

Source:: Amazon AWS