Tired of spelling your name over the phone?
Pre-ID yourself once and the hassle is over! It's like skipping security at the airport.
Help friends contact OnStar better.
Share this page.
Next Caller® provides phone numbers for 14 million US businesses.
Our goal is to make finding OnStar's phone number easier as it's sometimes shockingly difficult to find a company's customer service phone number.
Please do not contact Next Caller for your OnStar customer service needs.
We test OnStar's phone number on a monthly basis, if by any chance you have any issues, please
let us know
OnStar's phone number lookup is powered by Next Caller Directory Assistance.
OnStar's phone number has been verified accurate 1 year ago.
Have better things to do than repeat your name and address over the phone?