Carrier passthrough fees
Overview
U.S. and Canadian carriers apply per-segment surcharges or fees to A2P (Application-to-Person) traffic. These fees are charged by carriers (like AT&T, T-Mobile, and Verizon) for sending or receiving SMS and MMS messages on their networks.
Fees vary by carrier, message type (SMS or MMS), and direction (inbound or outbound).
- Inbound / Mobile Originating (MO): Messages received by SignalWire phone numbers
- Outbound / Mobile Terminating (MT): Messages sent by SignalWire phone numbers
SignalWire passes on carrier-imposed surcharges at-cost, with no additional markup. The tables below outline current rates, subject to change based on carrier updates.
Rate tables
Long code
Carriers assess the below fees for messages sent from long code or
10DLC
numbers.10DLC stands for '10-digit long code numbers', such as (123) 456-7890
. Learn more