Bank of America is an American multinational banking and financial services corporation headquartered in Charlotte, North Carolina. It is the second largest bank holding company in the United States by assets

As you asking for the Social Security number of the bank of America let me tell you that the Social Security number is basically a Debit Card password that may help you to retain your transaction when you Forgot your Debit card password

Features :

Protects the confidentiality of Social Security numbers
Prohibits unlawful disclosure of Social Security numbers
Limits access to Social Security numbers

this Social Security number you may get by Contacting to the Customer care number of the bank of America and they may Send the number on your Mail

the number is as follow :
Customer service: 00 1 315-724-4022
Credit card support: 00 1 757-677-4701