Skip to footer WIRELESS BUSINESS PREPAID TV BANKING INTERNET Our story Responsibility Newsroom Investors Careers My Account SAFETY 9-1-1 Public Safety / 9-1-1 T-Mobile USA is committed to a partnership with Public Safety to provide the best possible 9-1-1 service for our subscribers and roaming customers in times of emergency. T-Mobile's public education efforts T-Mobile USA is committed to a partnership with Public Safety to provide the best 911service for our subscribers and roaming customers in times of emergency. T-Mobile is committed to educating our customers about mobile phones and 911. On T‑Mobile.com and in materials sent directly to customers we also address issues such as accidental calls to 911. The State of Washington's 911 Office created these brochures: Accidental 9-1-1 calls 9-1-1 llamadas accidentales What's Your Location Remember, when calling 9-1-1 during an emergency: Stay calm and speak clearly. Do not hang up until the 911 operator has obtained all of the information that is needed, including your name, location, phone number, and nature of the emergency. When you are calling 911 from a wireless phone, your call may be disconnected if the signal is lost. Be sure to call 911 back if you are cut off. If you are driving, consider pulling off the road and stopping the vehicle to complete the 911 call. Your 911 call may need to be transferred to another 911 Communications Center. Frequently Asked Questions What is Basic 9-1-1 service? What is Enhanced 9-1-1 Phase I service? What is Enhanced 9-1-1 Phase II service? What is Text to 9-1-1 service? Do I need to purchase an upgraded handset to receive basic 911 or E911 services? As a T-Mobile subscriber, do I need to sign up for Phase I and II service? How do I know whether Phase I or Phase II services have been deployed in a particular area where I’m making wireless calls? Once a Public Safety/9-1-1 Communication Center requests Phase I and II service from T-Mobile, how long does it take to have the service available? Do I need to purchase an upgraded handset in order for Phase I and II services to work? What happens when I call 9-1-1 from my wireless phone? I have T-Mobile prepaid service, can I still reach 9-1-1? I kept my phone number from a different state when I moved. When I dial 9-1-1 from my T-Mobile handset, will my call be routed to the closest 9-1-1 center? What should I do if I accidentally dial 9-1-1? If I have subscribed to Wi-Fi Calling service, do I need to register the location of my device for 911 purposes? What level of 911 service will I receive using Wi-Fi Calling service? How does RTT to 911 work? Is it necessary to test my handset/service by calling 9-1-1 when I do not have an emergency? Where can I get additional information on Public Safety/ 9-1-1? What level of 9-1-1 service will I receive using my WiFi Calling handset when I am away from my registered location? Are there any limitations to using TTY to contact 9-1-1? Contact information for Public Safety and 9-1-1 Communications Centers ONLY Please note: Any correspondence that is sent to the 9-1-1 Regulatory Team that is meant for T‑Mobile Customer Care will not be answered. See Customer Care contact information For subpoena requests Fax: 973-292-8697 Law Enforcement Relations Phone: 973-292-8911 For 9-1-1 network issues Phone: 1-888-662-4662 Regulatory Team contact information Phase I and Phase II request letters should be addressed to the 9-1-1 Regulatory Manager at the address below. To expedite the processing of the request letter, please: Fax a copy of the letter to 202-654-5963 or Email it to 911.Regulatory.Team@T-Mobile.com. Send the original request letter via US Mail or by courier service to: T-Mobile 9-1-1 Regulatory Manager 601 Pennsylvania Avenue NW North Building Suite 800 Washington DC, 20004 Connect with T-Mobile English Español Contact us Contact information Check order status View return policy Get a rebate Find a store Trade-in program Support Device support Questions about your bill Plans & services Activate your prepaid phone or device Refill your prepaid account International rates T-Mobile for Business Business plans Internet of Things About Investor relations Press Careers Deutsche Telekom Puerto Rico Privacy notice Interest-based ads Privacy Center Consumer information Public safety/911 Terms & conditions Terms of use Accessibility Open Internet Do Not Sell My Personal Information © 2002–2021 T‑Mobile USA, Inc.