Hives, for example, come in two types -- acute and chronic -- and are usually caused by your body releasing histamine in reaction to an allergy. Histamine is an organic compound in your body responsible for triggering the inflammatory process.
If you have a checking account, the bank prints your account number on the bottom of your checks as the second number after your routing number. You can have the same account number at different institutions, but not the same account and routing number.
Answer Wiki. ABA routing numbers are 9 digits. There is no well defined standard for the length of US bank account numbers. The NACHA standard file format defines the account number as up to 17 digits. In my drawer I have checks from different banks with 8 digit and 10 digit account numbers.