You can get the information from the Clerk of the Court in the jurisdiction that holds him. The judge presiding is going to be a little angry and depending how many times your friend has been before the judge on the same issue might, it may create a hardship going forward. If he can demonstrate a willingness to pay what he owes, he might not have to stay in jail long. BUT, child support is a hot issue now and your friend is "playing with fire" by not making an effort making payments for his children.
https://www.inmateaid.com/ask-the-inmate/how-long-does-it-take-to-get-a-court-date-for-being-held-on-contempt-for-owed-back-child-support-can-you-get-sent-to-prison-for-this#answer
Accepted Answer Date Created: March 14,2014