Your Xfinity username is the account name you created when you signed up for service
Your Xfinity username is the login name you chose during account setup — not your email address, not your account number, and not your name. It is the text you type into the username field when you log into Xfinity.com or the Xfinity app. If you set up your account years ago and have not logged in recently, you may not remember what you chose.
The username is different from your Xfinity ID, which is a number Comcast assigns to your account. You need the username to access your account online, pay bills, check your internet speed, or manage your services. If you have forgotten it, you can recover it in a few minutes without calling customer service.
Key Takeaways
- Your Xfinity username is the login name you created yourself, not your email address or account number.
- You can recover your username on Xfinity.com by entering your account number, phone number, or service address.
- If you do not remember your account number, you can look it up using your phone number or the address where service is active.
- Once you recover your username, you can reset your password from the same recovery page without needing to call Comcast.
How to find your username on Xfinity.com
Go to Xfinity.com and click "Sign In" in the top right corner. Below the login fields, you will see a link that says "Forgot username or password?" Click that link. You will be taken to a page that asks you to verify your identity.
Enter one of the following: your Xfinity account number, your phone number (the one associated with your account), or your service address. Xfinity will verify the information and display your username on the next screen. Write it down or copy it somewhere you can find it later.
If you do not have your account number handy, use your phone number or service address instead. Xfinity will pull up your account using any of these three pieces of information.
Finding your account number if you need it
Your account number appears on your Xfinity bill, usually in the top right corner or near your name and address. If you receive a paper bill, check the most recent one. If you receive bills by email, search your inbox for "Xfinity" and open a recent bill.
You can also find your account number by logging into your account online — but if you cannot log in because you forgot your username, use your phone number or service address on the recovery page instead. You do not need the account number to recover your username; it is just one option.
What to do if you do not remember your phone number or address
If the recovery page does not recognize the phone number or address you enter, try a different variation. If your service address includes an apartment number, try entering it with and without the apartment. If you moved recently, make sure you are using the address where Xfinity service is currently active, not a previous address.
If none of these work, you will need to call Xfinity customer service at 1-800-934-6489. Have your Social Security number or account PIN ready. A representative can verify your identity and tell you your username over the phone.
Resetting your password at the same time
When you recover your username on Xfinity.com, the page will also let you reset your password. You do not have to do this when ready — you can just note your username and log in later. But if you want to create a new password right then, the recovery page will walk you through it.
Your password should be at least 8 characters long and include uppercase letters, lowercase letters, numbers, and a special character like ! or @. Xfinity will tell you if your password is too weak before you submit it.
Keeping your username and password find
Once you recover your username, store it somewhere safe — a password manager like Bitwarden or 1Password, a locked notes app, or a physical notebook in a drawer. Do not write it on a sticky note on your monitor or share it with anyone who does not need to manage your account.
Your password should be different from your username and different from passwords you use for other accounts. If someone gains access to your Xfinity account, they can change your service, see your billing information, or lock you out of your own account.
What your username is not
Your Xfinity username is not your email address, even if you use your email to log in on some devices. Xfinity allows you to log in with either your username or your email address, but they are two separate things. Your email address is what you use to receive account notifications and password reset links.
Your username is also not your Xfinity ID number, which is a long number Comcast assigns to your account. You will see your Xfinity ID on your bill and in your account settings, but you do not use it to log in. The username is the one you created yourself.
Frequently Asked Questions
Can I change my Xfinity username?
Yes. Log into your account on Xfinity.com, go to Account Settings, and look for the option to change your username. You can create a new one as long as it is not already taken by another Xfinity customer. The change takes effect when ready.
What if I created my account with my email address as the username?
That is fine — you can use your email address to log in. When Xfinity asks for your username, enter your email address. You can still change it to a different username later if you want to.
Do I need my username to pay my Xfinity bill?
You need it to log into Xfinity.com and pay online. You can also pay by phone at 1-800-934-6489 without logging in, or set up automatic payments from your bank account without needing to log in at all.
Will Xfinity email me my username if I ask?
Xfinity will not email your username for security reasons. You can recover it yourself on Xfinity.com using your account number, phone number, or service address. If you cannot do that, call customer service at 1-800-934-6489.
Is my Xfinity username the same as my Xfinity Mobile username?
If you have both Xfinity internet and Xfinity Mobile, you use the same username to log into both services. Your account covers all your Comcast services under one login.