Given below is a list of very useful Immigration resources e.g. "Visa Bulletin" will give you detailed information on categories of different Beneficiaries of Petitions and how long they may have to wait before they will get their visa number. "ICE Detainee Locator" can provide information regarding where a person may be detained. If you were admitted to the U.S.A. in or after 2013, and you do not have a paper I-94, chances are you might have been admitted after the US started electronic I-94 which can be obtained from the link given below. There are more resources and the list is as following: