People who receive telephone, cable or Internet services through Comcast are required to have a customer proprietary network information number, or CPNI number. Commonly refereed to as PIN numbers, CPNI numbers are used to protect consumer information. Comcast customers must know their PIN number to to receive specific information about their telephone account, such as information about specific phone numbers called using the account or about specific telephone numbers that called the account.
Call (800) COMCAST to speak to a customer service representative.
Provide the customer service representative with the information he requests to confirm your identity. The representative will likely ask you for your name, address, telephone number, Comcast customer number and the last four digits of your Social Security number.
Check your mail or email for your PIN. FCC regulations prohibit Comcast representatives from providing you with a PIN over the telephone, All PIN numbers must be mailed or emailed to the primary Comcast email address listed on the account.