To activate Xfinity phone, power on the device and follow the on-screen setup if it is a new line, or use the Xfinity app to activate an existing line. The correct path depends entirely on whether you are setting up a brand-new line or replacing a device on an account you already have, and preparing your IMEI, unlock status, and SIM in advance prevents delays.
How to activate your Xfinity phone: An overview of the two main activation paths
Activation follows one of two routes and applies to tablets as well as phones. If Xfinity shipped you a new phone or you are setting up a new line, the on-screen instructions guide you through eSIM installation after powering on. If you already have an Xfinity Mobile line and are upgrading or replacing a device, the Xfinity app handles activation on that existing line. Preparation is the same for both: confirm compatibility, unlock the device if needed, and have your SIM or eSIM ready.
Before you start: Requirements for activation
Begin by checking device compatibility. Enter the phone’s IMEI on Xfinity’s compatibility page and select Submit to confirm the device qualifies. You can find the IMEI by dialing *#06# on the phone. The phone must be unlocked. If you are transferring a number from another carrier, gather that carrier’s account number and PIN. Activation requires either a physical SIM card or an eSIM, depending on your phone model; have whichever is applicable on hand.
How to activate a new Xfinity phone
For a new phone shipped by Xfinity, unbox and power it on. Follow the on-screen instructions to connect to Wi‑Fi and then install the eSIM when prompted. After the eSIM is installed, the device completes activation automatically. If you are bringing your own device (BYOD), the same on-screen flow runs after compatibility is confirmed.
How to activate a phone on an existing Xfinity line
Open the Xfinity app. You can start activation through any of these paths:
- Overview tab: tap the search icon in the top corner, type Activate Xfinity Mobile device, then tap your device.
- Services tab: go to Services > scroll to Connect compatible equipment > tap Activate more devices > scroll to Mobile > tap Purchased from Xfinity or Purchased elsewhere.
- Account tab: go to Account > tap Set up equipment or devices under Activate WiFi and more > then choose Purchased from Xfinity or Purchased elsewhere.
As an alternative activation method, dial *228 from your Xfinity phone. Once you are on the correct screen, tap Start Activation.
Completing activation: Passcode, eSIM, and final setup
After tapping Start Activation, Xfinity sends a one-time passcode to the email address on file or the phone number linked to the device or SIM being replaced. Enter that passcode, tap Send Code, then tap Confirm Code. Once the number is activated, you will be asked to confirm your identity before finishing setup. If the app indicates that an eSIM is required, tap the notification and select Set up eSIM; then follow the cellular plan installation steps on your screen. When setup is complete, confirm that Xfinity Mobile appears at the top left of the home screen, which indicates your Xfinity Mobile services and settings are active.
Troubleshooting Xfinity phone activation issues
If the phone does not connect during activation, use the Set Up Over WiFi option available on the activation screen. Remove and reinsert the SIM card, then reset network settings on the phone. After activation, if Xfinity Mobile does not appear at the top left of the home screen, try a carrier settings update:
- iPhone: connect to Wi‑Fi, go to Settings > General > About, and wait for a Carrier Settings Update prompt. Select Update.
- Android: connect to Wi‑Fi, go to Settings > About phone > Software update, and select Download and install.
If problems persist, chat with Xfinity support for further assistance.
Frequently Asked Questions
How long does activation usually take?
Activation typically finishes within minutes of completing the on-screen or app steps. In rare cases, network provisioning can take up to an hour.
Can I keep my current phone number when activating?
Yes. During activation you will be given the option to transfer an existing number. Have your previous carrier’s account number and PIN ready to speed up the transfer.
What do I do if activation fails repeatedly?
First, use the Set Up Over WiFi option during activation. If that fails, restart the phone and try the entire process again. If the issue continues, chat with Xfinity support for troubleshooting specific to your device.
Will I lose my data when activating a new Xfinity phone?
Activation does not erase your data, but it is always best practice to back up your current phone before starting the process, just as Xfinity recommends before any device change.
Can I activate an Xfinity phone without a SIM card?
Activation requires a SIM, either a physical SIM or an eSIM, to connect to the mobile network. The setup process will prompt you for whichever type your device supports.
For the wider topic, see Xfinity Mobile services and settings.
