STi Mobile - Pay-As-You-Go

Contact Us

Customer Service

> To reach a customer care representative dial 611 from your STi Mobile Phone or call 1-800-784-3277
Monday through Sunday from 8:00 AM to midnight EST.
> Need answers or help? E-mail technical support at with your questions and we will respond within 24 hours.
> If you are a current customer, please include your STi Mobile phone number(s) and a contact number where you can be reached during the day along with a description of the problem or issue.
> If you are new to STi Mobile and have questions prior to making a decision on using our service, please let us know and we’ll respond within 24 hours.

Phone Activations

> To ACTIVATE your phone, call 1-800-784-6099 Monday through Sunday 8:00 AM to midnight EST or
click here to use our online activation system.


> Dial *555 and press TALK from your STi Mobile handset and enter your PIN number when prompted.


> If you have any questions on handset orders being placed through the website please call 1-800-499-4784 Monday through Friday from 8:00 AM to 8:00 PM EST.
> If you have purchased an STi Mobile Recharge PIN, please call 1-866-392-8777 or e-mail us at


> If you would like to do business with STi Mobile please call us at 1-800-784-9865, e-mail us at or Click Here >> to sign up.

Mailing Address

STi Mobile's Corporate Headquarters is located at :
1250 Broadway, 26th floor
New York, NY 10001