This is a six digit number present on the upper left hand corner of the property damage claim form sent to you, or it may have been provided to you over the phone.
This would be the last name you provided on the property damage claim form, or the last name used when you called in your claim by phone to the Claims Representative. If you are calling on behalf of a company this would be the first name of your company's name (e.g. Union Pacific Railroad).
Note: Claim ID and Last Name/Company are both Required.