Bandwidth messaging
Alphanumeric Sender IDs for messaging
Connect with customers around the world—using your brand name.
Why Alphanumeric Sender ID?
Show up as your brand—not a random number. With an Alphanumeric Sender ID, your messages get recognized, opened, and trusted around the world.
It’s a powerful building block for any global messaging strategy—now accessible through Bandwidth’s Universal Platform.
Capitalize on brand recognition, streamline your approach.
With Bandwidth a few lines of code get you up and running to send branded texts on one of the world’s most trusted messaging networks—reliable, scalable, and ready to grow with you.
What can you do with an Alphanumeric Sender ID for messaging?
Registered Alphanumeric Sender IDs help your customers instantly identify who’s texting them—leading to higher open rates and stronger engagement.
The most common use cases include:
- Appointment reminders
- Order updates
- Security codes
- Public alerts
- Promotional messages
“Five9 is growing a lot. We’re everywhere now, and Bandwidth has been a big part of that success and really allowing us to spread quickly and reach agents all over the world.”
Cristy Brown, VP of Telecommunications
Support that shows up, scales, and solves
- White-glove support from onboarding through day-to-day operations
- A single, named point of contact across your entire portfolio
- Always on proactive monitoring by our Network Operations Center (NOC)
- High‑performing Technical Assistance Center (TAC) with consistently high CSAT
- Growth guidance from seasoned business development managers
- Streamlined migrations with Dedicated number porting pros
Where will you send next?
Check our page for voice and messaging services by country.
Learn more about messaging at Bandwidth
FAQs
Alphanumeric Sender IDs for messaging allow you to send SMS messages to your customers from a custom ID instead of a phone number or short code. These messages arrive in the default messaging application, so customers can immediately recognize the sender, without even opening the message.
You can send outbound SMS from Alphanumeric Sender IDs. Inbound messages and MMS are not supported.
Businesses rely on branded sender IDs for order updates, appointment reminders, security alerts, and other time‑sensitive notifications.
Alphanumeric Sender IDs can be up to 11 characters long, though registration requirements vary by country. To prevent spoofing and ensure compliance, most markets require you to submit your chosen sender name, business details, and sample message templates for approval. Some regions also require a letter of authorization or brand verification documents. Since preregistration is mandatory in many international markets and approval times vary, we recommend submitting your details early to ensure global delivery.
With Bandwidth’s global reach, you can send Alphanumeric SMS messages to over 120 countries. You will need to register your Sender ID separately in each country where you wish to send.
Bandwidth offers Alphanumeric SMS from $0.0004 per message, depending on the destination country. Talk to one of our experts for more information.
