To make sure you don't miss any important calls or texts, it's best to wait to transfer your number until after you get your new device and SIM card.

Your voicemail will reset after the port completes.

Back up your contacts, voicemail, and text messages before transferring your number to T-Mobile.

Keep your service active with the other carrier until your number is fully activated with T-Mobile. Your account with your previous service provider must remain active to transfer your number over.

Some accounts may require the general account PIN/Passcode.

Some accounts may require a Temporary Port Out PIN.

Account Number (usually located on your bill, or service provider portal).

Here's the information you'll need to transfer your number:.If this happens, we can give you a brand new number. In rare instances, your number may not be eligible if we don't have a transfer agreement with your original service provider. There are a few steps you’ll want to complete to ensure a successful number transfer experience: Please note: the timing of your number transfer depends on the accuracy of the information provided.For landlines, the transfer may take anywhere from 2 – 10 days.For wireless lines, the transfer will typically complete from 10 minutes to 24 hours.There is no charge for transferring your phone numbers.Transferring your number, also known as porting, is the process by which you transfer your phone number from one carrier to another. Get your T-Mobile Temporary Port-out Pin.Transfer (port out) your mobile number to another carrier.How do I transfer my number to T-Mobile?.

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