On this page

Programmable Wireless: Supported Devices

Twilio does not provide an explicit list of supported cellular devices. Instead, we strive to support all devices that conform to a set of requirements.

Using a Twilio Programmable Wireless SIM, in order to successfully connect to a cellular network and reach the Internet, your device should:

Be physically capable of connecting to the radio towers of one of our partner networks using 2G, 3G or 4G standards. Please note that we can't provide an exhaustive list of what is required to connect to each network in each country. Every partner network will evolve its radio capabilities over time. The website frequencycheck.com is an excellent resource for determining what networks your device is compatible with, based on cellular radio technologies and frequency bands.
Have achieved PTCRB, GCF, or another regional certification that permits you to deploy the device in the target region in accordance with local industry regulation.
Have a configurable Access Point Name (APN). If you are not able to configure the APN on your device, it will not connect to the Internet successfully.
- For the Programmable Wireless Broadband IoT SIM, the device must use the APN wireless.twilio.com.
- For the Programmable Wireless Narrowband IoT SIM, the device must use the APN iot.nb.

Special considerations for consumer devices (iPhone, Android, etc.)

Certain consumer devices, including Android devices from some manufacturers, will not allow the end-user to configure the APN. This means the device will not be able to connect to the Internet using a Programmable Wireless SIM (see requirement 3, above).

There are workarounds to this whereby a Mobile Device Management (MDM) solution, or other enterprise configuration tools, can enable you to configure the APN on fleets of devices. Twilio does not currently provide tooling to help with this, but if the APN has been configured successfully, Internet connectivity should be available to the device.

Special considerations for Narrowband IoT

Twilio Narrowband IoT is presented in partnership with T-Mobile US. The Programmable Wireless Narrowband SIM enables access to the T-Mobile Narrowband (NB-IoT) network. Any product utilizing the T-Mobile Narrowband network that is intended for commercialization will need to be certified by T-Mobile.

To learn more about certification requirements for your Narrowband device, please see this page.