T-Mobile Announces Proposed Public Offering of Euro-Denominated Senior Notes

Barclays Bank PLC, BNP PARIBAS, Crédit Agricole Corporate and Investment Bank, Goldman Sachs & Co. LLC and Morgan Stanley & Co. International plc are the joint book-running managers for the offering of the notes.

The Issuer has filed a registration statement (including a prospectus) with the Securities and Exchange Commission (“SEC”) for the offering of notes to which this communication relates. Before you invest, you should read the prospectus in that registration statement and the related prospectus supplement and other documents the Issuer has filed with the SEC for more complete information about the Issuer and the offering of notes. You may get these documents for free by visiting EDGAR on the SEC Web site at http://www.sec.gov. Alternatively, the Issuer, any underwriter or any dealer participating in the notes offering will arrange to send you the prospectus and related prospectus supplement if you request it by contacting Barclays Bank PLC, 1 Churchill Place, London E14 5HP, United Kingdom, Telephone: +44 (0) 20 7773 9098, Email: LeadManagedBondNotices@barclayscorp.com; BNP PARIBAS, 16, boulevard des Italiens 75009 Paris, France, Attention: Debt Syndicate Desk, Email: dl.syndsupportbonds@uk.bnpparibas.com, Telephone: (toll-free) +1-800-854-5674; Crédit Agricole Corporate and Investment Bank, Broadwalk House 5 Appold Street, London EC2A 2DA, United Kingdom, Email: corp-syndicate@ca-cib.com; Goldman Sachs & Co. LLC, Prospectus Department, 200 West Street, New York, New York 10282, Telephone: +1-866-471-2526, Email: Prospectus-ny@ny.email.gs.com or Morgan Stanley & Co. International plc, Telephone: +1-866-718-1649.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy the notes, the related guarantees or any other securities, nor shall it constitute an offer, solicitation or sale in any jurisdiction in which such offer, solicitation or sale is unlawful.

Manufacturer target market (MiFID II product governance) is eligible counterparties and professional clients only (all distribution channels). No PRIIPs key information document (KID) pursuant to Regulation (EU) 1286/2014 has been prepared as not available to retail in EEA.

Manufacturer target market (UK MiFIR product governance) is eligible counterparties and professional clients only (all distribution channels). No UK PRIIPs key information document (KID) pursuant to Regulation (EU) 1286/2014 as it forms part of UK domestic law by virtue of the EUWA has been prepared as not available to retail in the UK.

Cautionary Statement Regarding Forward-Looking Statements

This press release contains forward-looking statements that are based on T-Mobile management’s current expectations. Such statements include, without limitation, statements about the planned offering of the notes and statements regarding the intended use of proceeds from the offering of the notes. Such forward-looking statements are subject to certain risks, uncertainties and assumptions, including, without limitation, prevailing market conditions and other factors. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those expected. More information about potential risk factors that could affect T-Mobile and its results is included in T-Mobile’s filings with the SEC, which are available at http://www.sec.gov.

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