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Group Messaging API

Group Messaging API

Stand out with the first, and only, group text messaging API built on our nationwide network.

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Rethink “Reply All”

Bandwidth’s Group Messaging API helps turn your product or feature into a reality, with no additional plug-ins necessary to start delivering exceptional user experiences.

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Move Beyond email

Reply all doesn’t have to be reserved for emails. Keep everyone in the loop, even if they’re on the go.

No app install necessary

Users can easily start group discussions without the need to install an app or have a smartphone.

Get the correct parties involved from the start

Make sure important, timely notifications like alarms are noticed by everyone they affect, not just a single point of contact.

Rich, seamless, and satisfying communication

Bandwidth provides the most complete and comprehensive group messaging solution available in the API market, allowing you to handle group texting the way users want it: seamlessly.

  • Quickly activate messaging-ready phone numbers—fast & easy
  • Supports basic text, emojis, and more
  • Add Bandwidth messages to non-Bandwidth phone numbers
  • 24/7 on-site network operations center (NOC)
  • Full geographic redundancy for all network elements
  • Accessible via API or SMPP
  • Interconnection to just about any mobile network in the US & Canada
  • Reliable delivery

We’re always finding new ways to use Group Text Messaging

Our customers are constantly working with us to find new and inventive ways to use Group Messaging to interact with their users.

Connect with multiple users at once

Sometimes there’s more than one interested party. Real estate, home security, or healthcare providers can use group messaging to contact multiple users without having to worry about app installation.

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Encourage workplace collaboration

Integrate group messaging using the same VoIP numbers your team already has and without the need to download and use additional apps.

Power group messaging apps

Create a unified way for your users to group chat, regardless of which device they’re using.

Industry education

Group Messaging enables your business to seamlessly
connect with all interested parties.




See our Group Messaging API in action

See how the first and only true Group Messaging API in the market delivers an amazing user experience with just a few lines of code.

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A better approach to support

We take a different approach to support than our competitors—we focus on making sure you’re successful. Our dedicated team of industry vets has the knowledge and experience to tackle the most demanding telecom situations, as well as the tools and processes to ensure your success and satisfaction. You’ll wonder why everyone doesn’t have the same approach.

  • Dedicated team to help you every step of the way
  • Assigned single point of contact with all products
  • 24/7 proactive Network Operations Center (NOC)
  • 98% CSAT delivering Technical Assistance Center (TAC)
  • Expert business development managers to help navigate your changing needs
  • A dedicated team of porting experts so you have an easy migration experience

Ready to start group messaging?

Sign up for a trial account or talk to one of our experts to see how Bandwidth’s Group Messaging API can help you improve your users’ experience.

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Frequently asked questions

When sending a group text message, Is there a maximum number of participants in a Group?

When sending group messages, there’s a maximum of 10 participants in a Group. There is no limit to the amount of recipients for Incoming Group Messages.

Are group messages charged per user?

You’re charged for each message sent, so if your group message sends to 10 recipients, you’ll be charged for 10 messages.

How do I create a group text message using the Bandwidth API?

Our developer docs provide a good deal of information on sending messages with our API, see “Send SMS or MMS Message” as well as “Incoming Group Message Event”.

Does group messaging utilize SMS technology?

No, the Group Messaging API is able to send to multiple users by sending an MMS. SMS is not accessible via group message.

Can I use group messaging with a toll-free number?

No, group messaging is only available on local MMS at this time.

SoM 2023