T-Mobile Business is the business arm of T-Mobile US, a telecommunications company that provides wireless voice, messaging, and data services to consumers and businesses in the United States. T-Mobile Business offers a range of services and solutions designed specifically for businesses of all sizes, including wireless plans, device management, and security solutions.

T-Mobile US is the parent company of several other cellular providers, including Metro by T-Mobile, a prepaid wireless provider that operates in the United States, and Sprint, which was acquired by T-Mobile in 2020 and now operates as a subsidiary of T-Mobile US. T-Mobile US also owns a stake in the mobile virtual network operator (MVNO) Ultra Mobile.

There are several reasons why you may need to provide a cell phone bill to someone:

• Proof of residence: If you are applying for a credit card, loan, or rental agreement, you may be asked to provide a cell phone bill as proof of your current residence.
• Proof of income: Some lenders or credit issuers may ask for a cell phone bill as proof of income, as it can demonstrate your ability to pay your bills on time.
• Employment verification: If you are applying for a job, your potential employer may ask for a cell phone bill as proof of your address or to verify your contact information.
• Identity verification: Some government agencies or financial institutions may ask for a cell phone bill as part of their identity verification process to confirm your name, address, and phone number.
• Dispute resolution: If you are disputing a charge on your cell phone bill, you may need to provide a copy of the bill to the cell phone company or a third party, such as a credit card company, to help resolve the dispute.

It's important to be cautious when providing your cell phone bill to someone else, as it can contain sensitive information such as your name, address, and phone number. Be sure to only provide a copy of your bill to trusted parties, and consider redacting any information that is not necessary for the purpose of the request.