T-Mobile Privacy Notice

DATED 2023-06-01 · VERSION 20230703_rev01 · COMPARED WITH 20230601_rev01 · ARCHIVE SNAPSHOT

Full text changes — 20230601_rev01 to 20230703_rev01

COLOUR MARKS THE SEVERITY OF A FLAGGED CLAUSE · + AND − MARK ADDED AND REMOVED

11**PRIVACY NOTICE**
22
3Effective: **March 31, 2023**
3Effective: **June 1, 2023**
44
55## Overview
66
77You, as consumers, trust T-Mobile to connect you to the world every day, and we're working hard to earn a place in your heart. A big part of that is maintaining your privacy. We believe you deserve transparency, education, choice, protection, and simplicity. Our goal is to help you take action to protect your privacy.
88
99## What's in this notice
1010
11This privacy notice ("notice") explains how T-Mobile and **[our subsidiaries and representatives](https://www.t-mobile.com/privacy-center/faq)** ("T-Mobile", "we", or "us") collect, use, share, and protect your personal data when you interact with T-Mobile as a consumer of our services. It also provides you with important information about your personal data choices.
11This privacy notice ("notice") explains how T-Mobile, **other brands we own,** **[our subsidiaries, and representatives](https://www.t-mobile.com/privacy-center/faq.html)** ("T-Mobile" or "we" or "us") collect, use, share, and protect your personal data when you interact with T-Mobile as a consumer of our services. It also provides you with important information about your personal data choices. or "us") collect, use, share, and protect your personal data when you interact with T-Mobile as a consumer of our services. It also provides you with important information about your personal data choices.
1212
1313This notice applies to personal data we have about you that identifies, relates to, describes, can be associated with, or could reasonably identify you as an individual. It includes data like your name, address, or email address, as well as less obvious data like demographic data, device and usage data, call records, advertising ID, and location data (where you are located). This notice also applies to sensitive personal data, a category of personal data that includes things like your social security number and account log-in credentials, as well as biometric information.
1414
1515This notice applies to all personal data we collect and use when you access or use our cell and data services, websites, apps, and other services (our "services"), purchase and use our devices and products ("products"), visit our retail stores or corporate offices, or communicate or interact with us in any way, including mail, email, phone, chat, social media, or in-person.
1616
1717Some products and services have their own privacy notice. To see the whole list, visit our [**Privacy Notices**](https://www.t-mobile.com/privacy-center/privacy-notices). If this notice conflicts with a privacy notice for a specific product or service, the product or service notice applies.
1818
1919This notice does not apply to data that is not personal, like anonymous, de-identified, or aggregated data, even if it comes from personal data.
2020
2121**This notice does not cover**:
2222
23- Job applicants. To learn more about personal data we collect and use when you apply for a job with us in the US, or for our recruiting purposes, please see our [**T-Mobile Applicant Privacy Notice**](https://www.t-mobile.com/privacy-center/privacy-notices/applicant-privacy-notice.html).
23- Job applicants. To learn more about personal data we collect and use when you apply for a job with us in the U.S., or for our recruiting purposes, please see our [**T-Mobile Applicant Privacy Notice**](https://www.t-mobile.com/privacy-center/privacy-notices/applicant-privacy-notice.html).
24
2425- T-Mobile employees or contractors. To learn more about personal data we collect and use from our employees and contractors, please see our [**T-Mobile Employee and Contractor Privacy Notice**](https://www.t-mobile.com/privacy-center/privacy-notices/employee-contractor-privacy-notice.html).
26
2527- People working with T-Mobile in a business context, such as vendors or T-Mobile for Business customers. To learn more about the personal data we collect and use from people working with T-Mobile in a business context, please see our [**B2B Privacy Notice**](https://www.t-mobile.com/privacy-center/privacy-notices/b2b-privacy-notice.html).
2628- Data that a parent or guardian has told us is from a child under 16. Parents and guardians can learn more about what we do (and don't do) when it comes to children's data by reviewing our [**Children's Privacy Notice**](https://www.t-mobile.com/privacy-center/privacy-notices/childrens-privacy-notice.html).
2729
2830## How we collect your personal data
2931
3032We collect personal data about you in four primary ways:
9395- Conduct research and create reports from analysis of usage patterns and trends and to deidentify or aggregate personal data to create business and market analysis and reports.
9496- Detect and help protect against security incidents and illegal, fraudulent, or unauthorized activities; investigate suspicious traffic, cybersecurity threats or vulnerabilities, complaints, and claims; authenticate your credentials for account access and information and provide other security protections.
9597- Protect you and others from fraudulent, malicious, deceptive, abusive, or unlawful activities.
9698- Debug and repair errors and help maintain and improve the quality and safety of our products and services.
9799- Verify your identity and determine your eligibility for accounts, discounts, and specific rate plans, as well as the validity of your payment information.
98100- Facilitate or verify the appropriate calculation of taxes, fees, or other obligations due to local, state, or federal government requirements.
99- Cooperate with law enforcement and protect the rights, interests, safety, or property of T-Mobile and others.
101- Cooperate with law enforcement and protect the rights, interests, safety, or property of T-Mobile and others.
100102- Comply with, defend, pursue, and enforce applicable legal and regulatory obligations and respond to governmental requests.
103
101104- Enforce our policies, terms and conditions, or other agreements.
102105
103106We may disclose your personal data with others as follows:
104107
105108**With your consent or at your direction**
106109We may disclose your personal data to third parties with your consent, which we may get in writing, online, or orally. We may also share your personal data with third parties when you tell us to or when you use our products or services to interact with third parties, whose separate privacy notices may apply to that data.
124127**To help protect our customers and others from fraudulent use of our network or services, we share personal data (like name, address, account status, SIM change history, and device status) or risk scores derived from such data with entities such as banks or with entities that provide fraud prevention services to T-Mobile.
125128
126129**Caller ID providers
127130**We may disclose your mobile number and name with third parties to enable Caller ID and similar services across multiple carriers when you make a call. We don't publish directories of our customers' wireless numbers or make numbers available to third parties for listing in their public directories without your permission. You can ask us to exclude your name from Caller ID by calling customer service. You can also block your number from being displayed temporarily on non-emergency calls. [**Learn how to block your number**](https://www.t-mobile.com/resources/how-to-block-your-number).
128131
129132**In a business transfer or transaction
130**We may disclose or transfer personal data about you as part of a corporate business transaction, like a merger or acquisition, divestiture, sale of company assets, or in the event of insolvency, bankruptcy, or receivership. In these cases, personal data could be transferred to third parties as a business asset. We may also disclose personal data to banks and similar entities for purposes of transferring loans in connection with your device financing.
133**We may disclose or transfer personal data about you as part of a corporate business transaction, like a merger or acquisition, divestiture, sale of company assets, or in the event of insolvency, bankruptcy, or receivership. In these cases, personal data could be transferred to third parties as a business asset. We may also disclose personal data to banks and similar entities for the purpose of transferring device financing agreements (or similar agreements) in connection with your device financing.
131134
132135**For legal process and protection
133136**We may disclose personal data to third parties, including government authorities, for legal processes or protection of life and safety where we believe that access, use, preservation, or disclosure of the information is reasonably necessary, including:
134137
135138- To comply with laws, regulations, legal process or to respond to lawful requests
136139- To enforce or apply agreements, or initiate, render, bill, and collect for products and services (including disclosure to collection agencies to obtain payment)
137- To protect the rights, interests, property, or safety of T-Mobile, our customers, and others
140- To protect the rights, interests, property, or safety of T-Mobile, our customers, and others
138141- In connection with claims, disputes, or litigation
139142- To protect you or others from fraudulent, abusive, or unlawful use of these services, and other fraudulent activity
140143- In an emergency
141144
142145## How we protect your data
143146
144147We use administrative, technical, contractual, and physical safeguards designed to protect your data. For example, when you contact us by phone or visit us in our stores, we have procedures in place to make sure that only the primary account holder or authorized users have access.
145148
146149We can't guarantee our safeguards will prevent every unauthorized attempt to access, use, or disclose personal data. Be sure to use a strong password to access your information and not one you use for other services. You should also use multi-factor authentication where possible.
147150
148151## Your data choices
149152
150We offer consumers in the U.S., Puerto Rico, and the U.S. Virgin Islands choices about their personal data, but your choices may vary depending on the laws that apply where you reside and whether you have a business-to-business account (T-Mobile for Business/T-Mobile for Government). If you have questions, please [**contact us**](). Your choices include:
153We offer consumers in the U.S., Puerto Rico, and the U.S. Virgin Islands choices about their personal data, but your choices may vary depending on the laws that apply where you reside and whether you have a business-to-business account (T-Mobile for Business/T-Mobile for Government). If you have questions, please [**contact us**](). To exercise your data choices, please visit the [**Privacy Dashboard**](https://www.t-mobile.com/privacy-center/dashboard) online. Your choices include:
151154
152Access, Delete, and Correct
155Access, delete, and correct
153156
154157**Access** 
155158To access your personal data, [**submit a personal data request**](https://www.t-mobile.com/privacy-center/privacy-rights-request). Once we receive your request and confirm your identity, we will disclose to you:
156159
157160- The categories of personal data we have collected
158- Our business or commercial purposes for collecting or selling personal data
161- Specific pieces of personal data we have collected
162- Our business or commercial purposes for collecting, selling, or sharing personal data
159163- The sources from which we collect personal data
160164- The types of third parties we disclose personal data to
161165- The types of personal data we disclose for business purposes
162166
163167For multi-line accounts, the Billing Responsible Party or Primary Account Holder submitting an access request will receive account-level data for all lines on the account such as billing and rate plan information. But personal data associated with a particular phone number on the account (data that is tied to the account but is not the data of the Billing Responsible Party or Primary Account Holder) won't be shared with the Billing Responsible Party or Primary Account Holder and will only be provided to the individual who submits a request for that phone number. If you are not the Billing Responsible Party or Primary Account Holder on the account, you'll only see information that is associated to your phone number and email that you include in your "Access my personal data" request.
164168
180184If we deny your request, residents of certain states are entitled to submit an appeal. Instructions for how to submit your appeal will be included in our response explaining why we denied your request.
181185
182186If you have questions about these choices, please read our privacy [**FAQs**](https://www.t-mobile.com/privacy-center/faq).
183187
184188Do Not Sell or Share
185189
186To tell T-Mobile "Do Not Sell or Share My Personal Information," visit our [**Privacy Dashboard**](https://www.t-mobile.com/privacy-center/dashboard) or click on the link in our website footers and apps. In this case "sharing" refers to a specific type of disclosure under certain privacy laws that relates to advertising activity, including "targeted advertising." An example of a sale or "share" of information is when we disclose information about you (like when you've visited our sites) tied to unique identifiers, like device IDs, with third parties for targeted advertising. When you tell us not to sell or share your personal information, we won't disclose your personal data for these purposes. Of course, not all disclosure of personal data is a sale or share, like when T-Mobile provides your data to service providers to deliver our products and services. To learn more, read the [**Do Not Sell or Share My Personal Information**](https://www.t-mobile.com/privacy-center/education/do-not-sell) article.
190To tell T-Mobile "Do Not Sell or Share My Personal Information," visit our [**Privacy Dashboard**](https://www.t-mobile.com/privacy-center/dashboard) or click on the link in our website footers and apps. In this case "sharing" refers to a specific type of disclosure under certain privacy laws that relates to advertising activity, including "targeted advertising." An example of a sale or "share" of information is when we disclose information about you (like when you've visited our sites) tied to unique identifiers, like device IDs, with third parties for targeted advertising. When you tell us not to sell or share your personal information, we won't disclose your personal data for these purposes. Of course, not all disclosure of personal data is a sale or share, like when T-Mobile provides your data to service providers to deliver our products and services.
187191
192T-Mobile recognizes Global Privacy Control (GPC) signals, which are a way for you to set a "Do Not Sell or Share" preference at the browser level. This means that if your browser or browser extension has GPC enabled, our websites will automatically recognize that signal and opt you out of the "sale" or "share" of your personal data.
193
194To learn more, read the [**Do Not Sell or Share My Personal Information**](https://www.t-mobile.com/privacy-center/education/do-not-sell.html) article.
195
188196Marketing communications
189197
190If you don't want to learn about products and services we or our partners offer, you can adjust your marketing communications preferences in our [**Privacy Dashboard**](https://www.t-mobile.com/privacy-center/dashboard). Not all of our communications are for marketing, and you'll continue to receive service messages for your products and services (like bills, transactional notices, customer service, etc.). To learn more, read the [**Your marketing preferences**](https://www.t-mobile.com/privacy-center/education/marketing-preferences) article.
198If you don't want to learn about products and services we or our partners offer, you can adjust your marketing communications preferences in our [**Privacy Dashboard**](https://www.t-mobile.com/privacy-center/dashboard.html). Not all of our communications are for marketing, and you'll continue to receive service messages for your products and services (like bills, transactional notices, customer service, etc.). To learn more, read the [**Your marketing preferences**](https://www.t-mobile.com/privacy-center/education/marketing-preferences.html) article.
191199
192200Advertising and analytics choices
193201
194202**T-Mobile data use for the Ad Program**
195203Under T-Mobile's Ad Program, T-Mobile will use certain data (1) for Analytics and Reporting (2) to deliver Relevant Ads, and (3) to deliver Personalized Ads and Offers.
196204
202210
203211We do not use app usage data to select advertisements, we only use your mobile advertising ID (MAID) and the models and inferences created from the app usage data. We and our advertising partners will use your MAID from your device and data from third party partners to deliver Relevant Ads to you. We will use this data unless you tell us not to by opting out.
204212
205213When we share MAIDs and inferences with third parties, it is not tied to your name or information that directly identifies you.
206214
207215**Personalized Ads and Offers**
208In addition to the data used for relevant ads, with your consent, we and our service providers will use precise location and other self-declared data you provide to us such as age range (e.g., 35-54), gender, interests, and survey responses from your device and top-level domain information about your web browsing activity from your broadband data to provide you with more personalized ads and offers. To illustrate, we process the top-level name/URL of the website you visited, such as a major retail website, but we do not look at what web pages within that site you visited (e.g., clothes or toasters). We won't use this data unless you opt-in and we'll stop using it if you opt-out.
216In addition to the data used for Relevant Ads, with your consent, we and our service providers will use precise location and other self-declared data you provide to us such as age range (e.g., 35-54), gender, interests, and survey responses from your device and top-level domain information about your web browsing activity from your broadband data to provide you with more Personalized Ads and Offers. To illustrate, we process the top-level name/URL of the website you visited, such as a major retail website, but we do not look at what web pages within that site you visited (e.g., clothes or toasters). We won't use this data unless you opt-in and we'll stop using it if you opt-out.
209217
210218We don't use or share Customer Proprietary Network Information ("[**CPNI**](https://www.t-mobile.com/privacy-center/education/phone-privacy)") for advertising unless you give us your express permission or as allowed by law to advertise certain T-Mobile products or services.
211219
212220We also do not use information from T-Mobile prepaid accounts or Assurance Wireless accounts for advertising. We also do not use information for advertising from accounts where a corporation or government agency is responsible for paying the bill. And if we know information belongs to a child, we don't use it for advertising.
213221
214222For more information about data we use and share for the Ad Program, visit our [**Privacy Dashboard**](https://www.t-mobile.com/privacy-center/dashboard.html). When you opt out of the sale or sharing of your personal information from our website footer or opt out using our [**Privacy Dashboard**](https://www.t-mobile.com/privacy-center/dashboard.html), your info will not be used for Relevant Ads unless you have provided your opt-in consent for Personalized Ads and Offers. To learn more about how your choices, visit our [**Privacy Dashboard**](https://www.t-mobile.com/privacy-center/dashboard.html).
215223
216224**Ads on your mobile device, computer, or other devices**
217You can get instructions on how to opt-out of targeted ads served by most advertising networks that use [**cookies**](https://www.t-mobile.com/privacy-center/education/cookies-tracking), Ad IDs, and similar technology by:
225You can get instructions on how to opt-out of targeted ads served by most advertising networks that use [**cookies**](https://www.t-mobile.com/privacy-center/education/cookies-tracking.html), Ad IDs, and similar technology by:
218226
219227- Visiting our [**Personalized Ads and Offers**](https://www.t-mobile.com/privacy-center/education/personalized-ads-offers) article.
220228- Visiting our [**Analytics and Reporting**](https://www.t-mobile.com/privacy-center/education/analytics-reporting) article.
221229
222230You can also take steps to manage targeted ads through your system settings. Resetting your device's mobile advertising ID does not opt-out your device from targeted ads, but data associated with your prior mobile advertising ID will not be linked to your new identifier through the device. Also, if you reset your device's mobile advertising ID your prior opt-out choices will not apply to the new ID. To maintain your opt-out choices, you'll need to opt-out again. These opt-outs will not impact "contextual" advertisements (e.g., a sporting goods advertisement on a sports-themed website) or ads we place on our own websites and apps based on your activity on those sites and apps.
223231
231239
232240**Location data choice**
233241We collect your location data to provide you with our wireless services. For certain non-essential activities, such as advertising, we request your permission before using precise location data associated with your identifying information. We don't use or disclose precise location data for advertising unless you give us your express permission. For more information, read our [**Cookies and tracking**](https://www.t-mobile.com/privacy-center/education/cookies-tracking.html) article. If you have previously consented to these uses, you may revoke that permission at any time through your device's operating system location preference controls or, in some cases, the app settings. You may also follow the standard uninstall process to remove the app from your device.
234242
235243Privacy requests received
236244
237As a part of T-Mobile's ongoing commitment to transparency about our privacy practices, we share information annually on how many privacy requests we receive. The data below is for the year 2021. Numbers were updated on May 18, 2022, to correct a calculation error.
245As a part of T-Mobile's ongoing commitment to transparency about our privacy practices, we share information annually on how many privacy requests we receive. The data below is for the year 2022.
238246
239247**Privacy requests received**
240248
241| | Requests to access | Requests to delete | Request to correct | Do Not Sell or Share requests |
242| --- | --- | --- | --- | --- |
243| **Number received (total)** | 3278 | 3352 | | 2,280,135 |
244| **Number received (CA)** | 688 | 831 | | Included in Total |
245| **Number complied with in whole or in part** | 2368 | 3220 | | 2,280,135 |
246| **Number denied** | 910 | 132 | | 0 |
247| **Median number of days to respond to access request** | 50 | 41 | | 0 |
249| | Requests to access | Requests to delete | Do Not Sell or Share requests |
250| --- | --- | --- | --- |
251| **Number received (total)** | 2,079 | 1,113 | 20,070,000 |
252| **Number received (CA)** | 376 | 253 | Included in Total |
253| **Number complied with in whole or in part** | 1,832 | 1,113 | 20,070,000 |
254| **Number denied** | 247 | 0 | 0 |
255| **Median number of days to respond to access request** | 39 | 38 | 0 |
248256
249257California residents
250258
251259Under the **California Consumer Privacy Act (CCPA)**, Consumers who are California residents have personal data rights, including the right to access, correct, delete, and stop the sale or sharing of personal data. Although the CCPA only provides these choices to California residents, T-Mobile, as an entity doing business in all 50 states, extends these benefits to residents in all U.S. states.
252260
253261Of course, if you do exercise any of these rights, T-Mobile will not treat you any differently. You can exercise your personal data rights within our [**Privacy Dashboard**](https://www.t-mobile.com/privacy-center/dashboard).
254262
255263**Categories of personal data collected and disclosed** 
256264For business purposes in the preceding 12 months is described in [**What data we collect**]() and [**When we share your data**]().
257265
258266**Business or commercial purpose for collecting personal data** 
259Is described in [**How we use your data**]().
267This is described in [**How we use your data**]().
260268
261269**Categories of sources of personal data** 
262270This includes information you provide us, that we collect and infer when you use our products and services and provided or purchased from other sources. For more information, see [**How we collect your data**](). 
263271
264272**Categories of third parties with whom we share personal data** 
265Is described in [**When we share your data**]().
273This is described in [**When we share your data**]().
266274
267275Sales and Shares of personal data
268276
269California law requires us to tell you that in the past 12 months, T-Mobile (which also includes Sprint) sold (as "sale" is defined in that law) the following categories of personal data for the reasons listed below: We shared device identifiers and internet and electronic network activity to facilitate online advertising. This means that a unique, resettable number that identifies your device was linked to online activity and shared with others who use that data for advertising and analytics purposes (like advertising networks, data analytics providers, and social media platforms). For Sprint customers, we used to share location and usage information with other companies in a way that does not directly identify you for their use in creating aggregate reports. For more information, read our [**Do Not Sell or Share**](https://www.t-mobile.com/privacy-center/education/do-not-sell) article. T-Mobile doesn't knowingly sell or share the personal data of children under 16. Don't want your data sold or shared? Set your Do Not Sell or Share preference in our [**Privacy Dashboard**](https://www.t-mobile.com/privacy-center/dashboard) or click the link in our website footers or apps.
277California law requires us to tell you that in the past 12 months, T-Mobile (which also includes Sprint) sold (as "sale" is defined in that law) the following categories of personal data for the following reason: We shared device identifiers and internet and electronic network activity to facilitate online advertising. This means that a unique, resettable number that identifies your device was linked to online activity and shared with others who use that data for advertising and analytics purposes (like advertising networks, data analytics providers, and social media platforms). For Sprint customers, we used to share location and usage information with other companies in a way that does not directly identify you for their use in creating aggregate reports. For more information, read our [**Do Not Sell or Share**](https://www.t-mobile.com/privacy-center/education/do-not-sell) article. T-Mobile doesn't knowingly sell or share the personal data of children under 16. Don't want your data sold or shared? Set your Do Not Sell or Share preference in our [**Privacy Dashboard**](https://www.t-mobile.com/privacy-center/dashboard) or click the link in our website footers or apps.
270278
271279Shine the Light
272280
273281Under the Shine the Light law, California customers may request information about whether a business has disclosed personal data (as defined in that law) to any third parties for their direct marketing purposes. We don't do that without your permission.
274282
275283Maine customers
276284
277285We will not use, disclose, sell, or permit access to your personal broadband data unless it's allowed in Maine. Maine customers have rights that they can exercise in our [**Privacy Dashboard**](https://www.t-mobile.com/privacy-center/dashboard). 
278286
279287Children's data
280288
281We know it's important to treat data parents and guardians tell us is from children under 16 and data from products and services we design for children carefully. The [**Children's Privacy Notice**](https://www.t-mobile.com/privacy-center/privacy-notices/childrens-privacy-notice.html) explains what we do (and don't do) when it comes to children's data. Generally, if you allow a child to use our products or services by providing them with a device or other access associated with your account, any personal data associated with their use will be treated as your personal data. If you're the parent or guardian of a child using a T-Mobile branded service, T-Mobile is currently testing the ability to designate the line as a Kids' Line. To learn more about the Kids' line including how to set one up, please see the [**Children's Privacy Notice**](https://www.t-mobile.com/privacy-center/privacy-notices/childrens-privacy-notice.html).
289We know it's important to treat data parents and guardians tell us is from children under 16 and data from products and services we design for children carefully. The [**Children's Privacy Notice**](https://www.t-mobile.com/privacy-center/privacy-notices/childrens-privacy-notice.html) explains what we do (and don't do) when it comes to children's data. Generally, if you allow a child to use our products or services by providing them with a device or other access associated with your account, any personal data associated with their use will be treated as your personal data. If you're the parent or guardian of a child using a T-Mobile branded service, T-Mobile is currently testing the ability to designate the line as a Kids' Line. To learn more about Kids' Lines including how to set one up, please see the [**Children's Privacy Notice**](https://www.t-mobile.com/privacy-center/privacy-notices/childrens-privacy-notice.html).
282290
283291This privacy notice and the Children's Privacy Notice don't apply to data collected by third party apps and websites, and we encourage parents to review the terms and policies of apps and websites before allowing children to use them. For more info, read the [**Family Controls and privacy**](https://www.t-mobile.com/privacy-center/education/family-controls) article.
284292
285293For specific information about kid products like SyncUP KIDS Watch and FamilyMode, please see the [**Children's Privacy Notice**](https://www.t-mobile.com/privacy-center/privacy-notices/childrens-privacy-notice).
286294
287295## Other important info
311319Subject to your settings, we and others may also use geolocation data to provide location-based services (like SyncUP PETS), or to personalize your experience and ads. To learn more, see our [**Cookies and tracking**](https://www.t-mobile.com/privacy-center/education/cookies-tracking) article.
312320
313321Internet of Things
314322
315323We provide connectivity to Internet of Things, or IoT, devices and services offered by other companies. We collect basic information about the information flowing over our network. However, if you're a customer of a T-Mobile IoT service, we, and our apps providers, also collect information from the IoT device and any related app to support the service. The information varies depending on the service but may include personal data like contact information and location, audio, and device activity and measurement data.
316324
317Data retention
325## Data Retention
318326
319We retain your personal data for business or tax needs, or legal reasons.
327We retain your personal data for business or tax needs, or legal reasons. We set our retention periods based on things like the type of personal data, the business purpose for which it was collected, and legal obligations to retain certain kinds of personal data.
320328
321329Technologies in retail stores
322330
323331In some of our retail stores, beacons have been deployed and we receive aggregate reports (none of which identify any individual or device) from these stores regarding store traffic that uses information collected from beacons through mobile apps. We may also use [**technology that tracks**](https://www.t-mobile.com/privacy-center/education/cookies-tracking) aggregate traffic patterns and wait times in our stores using Wi-Fi and Bluetooth identifiers (e.g., a MAC address). We'll provide a notice at each location where we use this technology. If you don't want your device used this way, opt out at any time by entering your MAC address at [**Smart Place Privacy**](https://optout.smart-places.org/). 
324332
325333Unaffiliated third parties
345353If you have questions or comments, contact us:
346354
347355- Email: [**privacy@T-Mobile.com**](mailto:privacy@t-mobile.com)
348356- Call customer service toll-free by dialing:
349357 - T-Mobile: 1-800-937-8997 or 611
350358 - Metro by T-Mobile: 1-888-8metro8 (1-888-863-8768) or 611
351 - Sprint: 1-888-211-4727
359 - Sprint: 1-888-211-4727 or 611
352360 - Assurance Wireless: 1-866-482-2003