STi Mobile Customer Service Numbercontact number, toll free helpline number, support number, complaints, feedback with corporate head (HQ), registered, mailing and postal office address, telephone number, fax number, email id and website.

If you are looking STi Mobile customer service toll free number and contact number of STi Mobile. So as this page we are sharing all important contact information of STi Mobile. If you have any queries, complaints, feedback and suggestions regarding products and services offered by STi Mobile, we suggest you can contact immediately to the customer service representative of STi Mobile by following the contact details given below.

Here you can also find customer service phone number of STi Mobile with ratings, reviews, coverage, plans, order status, extended service plan, SIM, offices, locations, etc.

STi Mobile Customer Service Number – Contact Details

The customer service support offered by STi Mobile for the users includes customer service toll free number, customer support email ids, branches etc. The customers having queries or if they need any support then they can take any of the contact information according the issue for which they want to contact.

STi Mobile Customer Service Phone Number:

  • 1-800-784-3277 (Monday through Sunday from 8:00 AM to midnight EST)
  • 1-800-784-6099 for Phone Activation (Monday through Sunday 8:00 AM to midnight EST)
  • Dial *555 and press TALK from your STi Mobile handset and enter your PIN number when prompted
  • 1-800-499-4784 to order phone (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

STi Mobile Customer Service Email ID:          

STi Mobile Corporate Headquarters HQ Office Address:

  • Address: 1250 Broadway, 26th floor, New York, NY 10001, United States
  • Phone: +1-800-784-3277
Useful Links of STi Mobile:

Click here to find coverage locations

Click here to find online help and support

If you are unable to connect with the STi Mobile Customer Service representatives, kindly you can contact to the your local Customer Service support by following the above mentioned STi Mobile Customer Service, mailing and head office address, telephone numbers, fax numbers, email ids and more. You can also contact to the area head office located in your region or can visit the regional Customer Service office directly, send an email, and write a letter.

STi Mobile Official Website: