T-Mobile is the trade name of a few mobile communications subsidiaries of the German telecommunications corporation Deutsche Telekom AG in the Czech Republic (T-Mobile Czech Republic), Poland (T-Mobile Polska), the United States (T-Mobile US), and the previous subsidiary in the Netherlands (T-Mobile Netherlands).
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From 2003 until 2007, T-Mobile International, “Broadband/Fixnet,” “Business Customers,” and “Group HQ and Shared Services” were all offered by Deutsche Telekom. In 2009, Deutsche Telekom transitioned to a regional organization. (US, Europe, Germany) To create integrated local companies, T-Mobile International combined its formerly distinct fixed and mobile divisions and joined Deutsche Telekom AG.
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When T-Mobile International AG was in operation, its companies ran GSM, UMTS, and LTE-based mobile networks across Europe, the US, Puerto Rico, and the US Virgin Islands. T-Mobile International AG’s parent company had its headquarters in Bonn, Germany. In both Central and Eastern Europe, the company has financial ties to mobile operators.
Can I get a new SIM card from T-Mobile?
You only need to activate your 5G smartphone if you have the SIM card that was included. For a new SIM if you no longer have the SIM that was included with your 5G handset, get in touch with T-Mobile or visit a store. The request must be made by the account holder or another authorized user for your security.
Can I activate my T-Mobile phone myself?
On your phone, make sure Wi-Fi is turned on, then proceed to the Metro by T-Mobile Self-Service Center. You can call Customer CARE at 1-888-8metro8 to activate it if you don’t have Wi-Fi connectivity.


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