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Reach T-Mobile Corporate Office Headquarters 

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T-Mobile Corporate Office is located in Washington, USA. More information to reach out to T-Mobile is listed below, including the T Mobile corporate office address, phone numbers, and websites. Also, customer reviews and T-Mobile complaints.

How to Contact T-Mobile Corporate Office Headquarters HQ

Address: 12920 SE 38th St. Bellevue, WA 98006 USA

T-Mobile Phone Numbers and Contact Information

T Mobile Headquarters Phone Number: 1-425-378-4000
Fax Number: 1-425-378-4040
TTY: 1-877-896-1018
Customer Service Number: 1-877-453-1304
Business Customer Service: 1-888-537-4242
Website: T-Mobile.com

T-Mobile Corporate Office HQ

Maps and Directions To TMobile Corporate Office Location

T-Mobile Competition

T-Mobile competes against major rivals like AT&T, Verizon, and Xfinity. Known for its ‘Un-carrier’ approach, T-Mobile has differentiated itself by challenging industry norms and placing a strong emphasis on customer service. They also own Metro by T-Mobile. Other smaller competitors include Mint Mobile, Boost Mobile, US Cellular, Google.

T-Mobile HQ
T-Mobile HQ on Earth Day

Disclaimer:

CorporateOfficeHeadquarters.com is not affiliated with T-Mobile. The content here is for informational purposes, offering a platform for reviews and user feedback.

T-Mobile Disappointing Unresolved Customer Service Issue

September 18, 2025

T-Mobile, Still waiting on $312.80 refund for service I never used. Today was phone call #4 inquiring about a refund that has been due to me for over 3 months. I don’t understand why it takes so long to process a refund. You, sure would not wait for over 3 months for a customer to make a payment. I guess I need to make a phone call to the BBB.

D P H

T-Mobile Unresolved Incorrect Billing Issue

August 12, 2025

T-Mobile, Poor billing incorrect account. I have been contacting you regarding my poors cell phone service. I have been receiving. I have been contact you and representative to straighten out my account.

T

T-Mobile Disappointing Experience

June 6, 2025

T-Mobile, I Trusted and now I don’t. Well, where should I start? I have spoke on several occasions to T-Mobile, Apple, and tech. One night I was on the phone for 3 hours trying to get my problem. One if the T-Mobile tried to get name into a iphone 16. And she said don’t worry I will get you the 16. I was only joking. But because I had to catch up my payments. I wanted to get the free promo on the iphone 16, but because my credit is not good, they wanted me to put money down. I went around and around to get my problem fixed. We fixed one of my problems but that was ninth main problem. I also had a not so pleasent time with one of the Apple reps. I am also paying on a warranty also. The guy told me I would probably have to go to Apple store. Now mind you, I have to have my phone. And I don’t drive to much because of my disability. T-Mobile has always had good experiences with them, but I think I will be switching to Verizon.

A T

T-Mobile Disappointing Experience

June 4, 2025

T-Mobile, Staff was fired and when I went to the store customer service and manager could not resolve my problem. Poor.

L M

T-Mobile Unresolved Disappointing Claim Issue

June 2, 2025

T-Mobile, Claim Issue. I get excellent service from my local store. However, it ends there. For the last four days after I followed the instructions from the store manager reference my phones battery prematurely failing and going to the primary web site and filing a claim, I have not gotten the first positive response to check status on the web or talking with customer care. Just today I spent over an hour on the phone talking with a total of seven different representatives. We pay a monthly fee for a maintenace plan. I am at my wits end. It can’t be that hard people. Getting bounced back and forth between T-Mobile and the insurance company should never happen and sending me a new phone should. For a corporation that advertises themselves on national TV as being customer driven let’s make that a fact with me. Claim number is available to a rep who will call me on my phone or give me a secure number to text it to to if it will help expedient this issue.

J M H
Corporate Office Headquarters