According to the specifications on the T-Mobile website, the phone doesn't have the LTE frequency band 13 or the CDMA radios necessary for the Verizon Wireless network. In other words, it is incompatible.
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apsc, I am glad we were able to look into the specs for the T-Mobile S9 for you to see if it is compatible. If you have any questions do not hesitate to reach out to us. Thank you for being a part of the Verizon family and have a great weekend
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