You Do Not Need a Blank Check # To Order.
Checking Account "Routing & Account Numbers" are required.

 First &  Last Name    Name as it appears on your Checking Account
 Bank Name    As it appears on you Check Account
 Billing Address    as it appears on you Check Account
 City    As it appears on you Check Account
 State    As it appears on you Check Account
 Zipcode or Postal Code    As it appears on you Check Account
 ABA Routing Number    If Unsure, look at Example Above
 Account Number    If Unsure, look at Example Above
 Check Numer:     Not required (If You do not have a Blank Check, Leave Blank