Subscription number
Your subscriber number is the matchkey (14 characters) on your mailing label between the two # signs on the second row of the label. It will begin with your 5 digit zip code; followed by the first 5 characters of your last name (please note if your last name is shorter then 5 characters please enter spaces); followed by the first letter of your first name; followed by 3 digits (please omit the last number on the label before the # sign).
I have highlighted the position of the subscriber number on the below image. Not it is only the first 14 digits of this number. the last digit is not needed.
Look up your Subscriber Number
If you are having difficulty locating your account number or matchkey, please call 888-883-3801.