Look-up tools often allow users to search by state and transaction type or display routing numbers for each transaction type. I f you’re not sure which routing number to use, check with your bank.

You'll also find your routing number on the bottom left-hand corner of a check. If you're initiating an incoming wire transfer, PNC Bank has a unique routing number for this type of transaction.

The routing and account numbers are located in the bottom-left-hand corner of each check. The routing number is listed first, then the account number, then the check number.

The American Bankers Association today launched a new tool, which allows consumers to look up bank routing numbers. The database contains all of the routing numbers – also known as ABA numbers ...