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Programmable Wireless: Cellular Connectivity for IoT

Twilio Super SIMs and Programmable Wireless APIs let you add cellular data and full messaging capabilities to your Internet of Things (IoT) devices. Our REST APIs allow you to manage massive fleets of IoT devices just the way you choose.

Whatever your use case — or however how far you’ve progressed on your IoT journey — this page will provide you with the resources you need.

Not a developer? Please see our Programmable Wireless product page.

Keen to cut to the chase and go straight to our cutting edge IoT technologies? Check them out here.

Get started

Kick off your IoT endeavors by ordering a Twilio SIM. If you plan to use a Twilio Developer Kit, a SIM comes included — or you can head to the Console to order some standalone SIMs. Need a hand? Here’s some helpful guidance.

You can use the SIM with a compatible IoT device, or a mobile phone or tablet. Whichever you use, you’ll need to configure its Access Point Network (APN) setting first.

Here are some suggestions for trying out your SIM with a variety of IoT devices:

If you have any questions related to data pricing, please check out our pricing page or contact our Sales team.

Build your IoT product

Twilio Developer Kits enable you to bring your ideas to life by making it easy to prototype IoT products. Our Developer Kits come ready with hardware components, software tools, sample code and Twilio SIMs for connectivity.

Narrowband IoT kits

If you’ve received a Twilio T-Mobile Narrowband IoT (NB-IoT) Developer Kit, we have a setup guide just for you.

Want to know more about NB-IoT? Check out our guide.


The following walkthroughs will help you get from the drawing board to deployment wherever your hardware will be implemented.


Use these step-by-step instructions to implement Twilio Programmable Wireless on a variety of popular hardware platforms.


Twilio Programmable Wireless Blueprints provide complete code and full instructions to create IoT devices for specific use cases.

Extend your app with cutting edge connectivity

You’ve proven your concept and you’ve built your product — you’re now ready to take your IoT product to market. It’s time to learn how to manage your SIM’s cellular connectivity and monitor your usage. Whatever your use case, Programmable Wireless will help you stay connected.

Planning to go to production scale? Check out our regional and international carrier support and learn how to save money with our rate plans.

Enhance your IoT product with these powerful Twilio Programmable Wireless and Super SIM features.

Trust Onboard: the secure IoT web

Trust Onboard provisions Twilio SIM cards with two X.509 certificates which can be used to authenticate IoT devices in HTTPS connections to your systems to cloud providers such as Microsoft Azure.

VPN for IoT: protected communications

The Programmable Wireless Virtual Private Network (VPN), with the help of Twilio Interconnect, creates a secure, encrypted tunnel using Internet Protocol Security protocol (IPSec) to allow data to flow in total security between your cellular IoT devices and servers.

IoT fleet command and control

The Programmable Wireless REST API enables you to programmatically manage global fleets of cellular IoT devices.

Voice and text for IoT

PRE-RELEASE Twilio SIMs can make and receive voice calls, and send and receive SMS messages using TwiML® in the style of Programmable Voice and Programmable SMS. Follow these guides to find out how:

Programmable Voice and Programmable SMS are offered as a Pilot for Programmable Wireless SIMs. It is not recommended that you use this functionality to power a production system today.

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