How to Activate Your New Phone on Xfinity Mobile at – Updated

Xfinity Mobile is a wireless service offered by Comcast, a major telecommunications and media company in the United States. It operates as a Mobile Virtual Network Operator (MVNO), which means it uses the network infrastructure of other major carriers to provide its wireless services.

Xfinity Mobile offers a variety of plans, including unlimited, by-the-gig, and shared data plans. It also offers a variety of devices, including the latest smartphones from Apple, Samsung, and LG.

Whether you are getting a new phone number or want to use your current one, Xfinity Mobile’s activation process is simple. You can do it online by accessing the activation link, i.e., Let us walk you through the step-by-step activation process. Activate

Before you start the process and activate your new or existing phone on Xfinity Mobile, ensure your phone is turned off and should stay off throughout the entire activation process.

Guide to Activate Your New Phone with Xfinity Mobile

Before you begin the activation process, ensure you have the following:

  1. New Xfinity Mobile phone: This could be a phone you purchased from Xfinity Mobile or a compatible BYOD (Bring Your Own Device) phone.
  2. Xfinity Mobile SIM card: If you’re activating a new phone line, you’ll need an Xfinity Mobile SIM card. You may need to order a SIM card separately if you bring your own device.
  3. Xfinity Mobile account: You’ll need to have an existing Xfinity Mobile account or create a new one if you’re a first-time customer.
  4. Account details: Keep your Xfinity Mobile account details handy, including your account number and phone number (if you’re transferring an existing number).

It will take less than 10 minutes to activate your new phone on Xfinity Mobile at

Step 1 – Unboxing Your New Phone and SIM Card

The process begins with unboxing the new device. First, open the box and take out everything it has, including your new phone, Xfinity Mobile SIM Card, charger, and any other essentials/ accessories.

Keep the phone switched off and follow the instructions in the box to insert the new Xfinity Mobile SIM Card correctly.

Step 2 – Go to Xfinity Mobile My Account

  • After inserting the new SIM card, visit on another device such as a computer, tablet, or mobile phone.
  • Now, sign in with your Xfinity ID. If you have created your Xfinity account using your email, mobile, or username, use the respective credentials.
  • Click the Let’s go button. (If you haven’t created an account yet, click the Create a new Xfinity ID option.)
  • After logging into your Xfinity account, select the phone that you want to activate.
  • When prompted, enter the account and PIN from the previous carrier if you are transferring a phone number.
  • Also, provide your billing address. You will find this information on an old bill.
  • If you want a new number, select I want a new number. A new number will be assigned to you automatically once the phone is activated.
  • You will then have one from Xfinity once your phone is activated and ready.
  • Then, click the Activate option. That’s it!

You will get a confirmation email when the activation is complete. Typically, most numbers get transferred in 10 minutes. However, it depends on the carrier.

You can now switch on your device and use the fastest 5G network in your area.

Frequently Asked Questions

How to activate my existing phone on Xfinity Mobile?

If you want to keep your current phone and use the new Xfinity Mobile SIM Card, you need to eject the old SIM card first and then insert the new one.

Also, keep the previous carrier PIN and your account number handy. Check your past bills to find these details.

Once you have these details, visit and follow the prompts to activate your Xfinity SIM.

Where do I find my account information from my previous carrier?

You should find your account details in the past bills. If you don’t see the details there, contact your previous carrier.

Moreover, if the previous carrier has an app, it becomes pretty easy to get the account information. For example, you may want to use the following information to find account numbers and PINs from popular service providers.

Boost Mobile: Call Boost Mobile to get your 9-digit account number. You can dial 888-266-7848 for instant help. Or, you can visit
FreedomPop: If you have the log-in details, use them to find your account number. For PIN, call FreedomPop on 888-743-8107. You may visit its official website –
Google Fi: When you start the service, you get your account number and PIN. Save these details for future use. For help, visit

My name is Dan Smith, and I am a senior technical writer at Activate Guide. I have been covering the technology industry for over seven years, writing about streaming devices, TV channels, credit card activation, and many more.

9 thoughts on “How to Activate Your New Phone on Xfinity Mobile at – Updated”

  1. I need to activate the sim card for Xfinity bundle that I purchased last week. My cell is a Galaxy9 and I have NO idea how to open it to insert the sim card when activated.
    My order number is: 366370368. My customer number is: 608664694.
    Please tell me how to activate the sim card because the the directions online are terrible, confusing and totally worthless.

  2. I need to activate my new sim card for my samsumg S20 FE phone .I can not get it to doing on line.My order number is 369868972 .My customer number is 608895591.

  3. my phone is a a motorola android which i am trying to activate. My verizone phone phone has been cut off. I am without a phone. The message I am getting on the new phone is invalid sim card. I need help

  4. Sorry, I have hard time since you sent SIM Card, it is very complicated to handle, can you text me simply way, because in your details is for different devices, and is not easy to understand, please before they block be my old network

  5. I am changing from verizon to xfinity moble i have installed the sim card and don’t understand where to go from here Help phone # 8016315678


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