Longer trips just got shorter
Thanks for your interest in purchasing a wireless plan and setting up AT&T NumberSync® for Connected Car.
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Use the same wireless number on multiple devices
When you purchase the AT&T NumberSync for Connected Car plan, you’ll enjoy unlimited voice service* using your smartphone number. NumberSync enables your car to make and receive calls using the smartphone number you’ve synced it with—even when your smartphone isn’t with you.

Get going with NumberSync for Connected Car

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Get a better wireless signal

Enjoy enhanced voice quality and data speeds via your vehicle’s built-in outdoor antenna.

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You decide how to answer with simultaneous ringing

Calls to your smartphone number will ring your smartphone and your vehicle at the same time.


No worries if you forget your smartphone

Use your smartphone number directly from your vehicle when you don’t have your phone handy.

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Get unlimited data* and a Wi-Fi® hotspot

Set up your vehicle’s hotspot via our 5G network** and connect your other devices.

*After 22GB, AT&T may temporarily slow data speeds if the network is busy. 

**5G req's compatible plan and device. 5G may not be in your area. See for 5G coverage details.