Overview

Toll-Free numbers in the United States (+1 country code) support SMS and MMS messaging to and from mobile users in the US and Canada. Toll-Free US numbers can also send one-way SMS to countries outside of the +1 region, just like any other Twilio SMS-capable number. For details, see our detailed article about Toll-Free messaging.

This article contains information about the message sending throughput (MPS) available via Toll-Free messaging.

Product

Programmable Messaging 

What You Need To Know

Toll-Free SMS to the US and Canada

By default, any US Toll-Free number you purchase from Twilio offers an SMS sending throughput of 3 MPS (message segments per second) toward the US and Canada. 

If you need higher than 3 MPS throughput on a Toll-Free messaging use case, it is very important not to use multiple Toll-Free numbers for the exact same use case just to achieve higher MPS. Carriers do not consider the use of multiple Toll-Free numbers for the same messaging to be acceptable, unless you have a business reason e.g. a restaurant with multiple locations. For details about this and other requirements, see Information and best practices for using Toll-Free SMS and MMS in the US and Canada.

Toll-Free MMS

Twilio added MMS support to all US Toll-Free numbers in our inventory in February 2021. Toll-Free MMS is considered a Generally Available (GA) offering as of March 15, 2021. Like long code MMS, Toll-Free numbers can send MMS to users in the United States and Canada only.

Each Toll-Free number has an MMS sending rate of 3 MPS, but can be increased for messages towards the larger US carriers. Canada is limited to 3 TPS per Toll-Free number. There is a default account-level limit of 25 MPS (messages per second) for Toll-Free MMS. This limit applies across your entire Twilio Account including any subaccounts, regardless of how many Toll-Free numbers you have on your accounts. This means that any subaccounts that you have will share this total capacity limit, with each other and with your parent account.