If you want to pay your bill online, you have two options.
One lets you pay without signing in. The other requires you take a couple minutes to set up an account, but then you don't have to re-enter data every time you make a payment. Which one you choose largely depends how often you plan to pay your bills online—rarely or regularly.
Use Quick Bill Pay if you're in a hurry, have no interest in creating an account and/or you only need to pay your bill online every now and then.
Use My CenturyLink if you anticipate wanting to pay your bill online more than once. It lets you save your payment information so you don't have to re-enter it every time you pay a bill. While you're signed in, you can also look at old bills, make changes to your services and update your account.
Both My CenturyLink and Quick Bill Pay are mobile-friendly so you can use your smartphone or other device to submit your payment.