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  • Reach T-Mobile Corporate Office Headquarters

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 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

T-Mobile Disappointing Billing Issues

June 2, 2025

T-Mobile, Had Multiple Pieces Of Equipment That Needed To Be Sent Back When My Company Cancelled Their Plan Due To Their Horrific Service, So They Sent Us Prepaid Shipping Containers. They Didn’t Tell Us That The Shipping Containers Were Specific To The Devices! So When We Sent Them Back, They Claimed The Devices Were Never Received, Even Though We Were Able To Provide Proof Of Delivery Of The Devices, Including Date, Time, And Who Received The Package. This Has Been Ongoing For Over 2 Years. Do Not Do Business With T-Mobile.

J L

T-Mobile Oneonta NY Unresolved Disappointing Experience

June 1, 2025

T-Mobile, Oneonta, NY Store wouldn’t accept iPhone 16 for return after they were unable to activate the iPhone’s eSim the previous day! 1. On Weds, 5/28/26 , after listening to T-Mobile commercials for upgrading to an Iphone 16, I went to the T-Mobile store in Oneonta, NY. The “mgr” said I was in eligible. Instead they said I could upgrade to a Moto G 2024 from my Moto G 2023. The Mobile Associate then told me I had to pay-off my Moto G 2023 with an added monthly payment of $8.00 for several mos. I left and declined the offer. 2. Late in the evening I called 611, and the T-Mobile agent said I could upgrade to an Iphone 16, with a plan change costing me .05 cents more monthly. I agreed to that. The T-Mobile agent said that she would send it to me that it would arrive quickly. 3. The Iphone arrived on Fri. 5/30 about 520 PM. I rushed to the Oneonta store and asked them to activate the Iphone. I learned later that the Iphone had a eSim and you must first connect to my home WIFI. I took the Iphone home, I have been a customer of T-Mobile for 11 years, It was activated and a brick. In the evening I called 611 and spoke with s Tech who tried to activate the Iphone. I could not get into settings because of the earlier attempt by the Oneonta, NY store. 4. Frustrated I just wanted to return the Iphone because I had a pre-paid label for my Mot G 2023 and wanted to keep the Moto G 2023. I suggested to the Tech I spoke to Fri. evening to send me a new label via my registered email address. She was unable to do that. 5. The next day I went to the Oneonta, NY Store and said that I was told by their Tech that I could leave it at the store. The Mgr of the store said I couldn’t, but could pay a “restocking fee” of $79.00. I said fine. Then he said that he couldn’t do it. I did not get the iPhone from that store. 6. I want to get a label for the iPhone so I may return the iPhone to T-Mobile, but after a half dozen unsuccessful calls because I can’t wait 60 minutes for a representative, than be put on hold again!

Why did every call to 611 result in a wait in excess of 60 minutes for 4 calls. None of the calls, which I hope were recorded, resolved my problem?

I have no label so I am sending the phone to the Corporate Headquarters.

H B
Corporate Office Headquarters