Your cricket account number is the phone number for your cricket account. You can also go to your account online at www.account.mycricket.com. If you have also forgotten your password, you just enter your phone number to retrieve a new password. The website also has a toll free number to call for assistance as well as live chat.
We have so many accounts and passwords to remember that it is not unusual for us to forget information such as that from time to time. Do not fret over it just call the 1800 number to the company and explain that you do not remember and they will ask you a series of questions to ensure you are who you say you are.