Administrative Case Number

In Illinois, every administrative child support case has a unique administrative case number.  Every document you receive from the Department of Family Services (HFS) will have the administrative case number written on it.   


Each administrative case number contains an "H". For example:      

  • "221HXXXXXX." Note: the numbers before the "H" may be different for your administrative case number


If you do not know what your administrative case number is, you can call HFS at (1-800-447-4278), or visit their office at 36 S. Wabash St, 9th Floor.  


If the documents you received for your case does not contain an administrative case number, it may have a docket number instead.