Checking the Status of Your USCIS Application Online
If you have submitted an application to one of the two USCIS Lockboxes (Dallas or Phoenix) you can check the status by going on-line to: https://egov.uscis.gov/cris/Dashboard.do
Among the kinds of applications that can be tracked using the on-line system are change of non-immigrant status, H-1B petitions, replacement I-94 card, Optional Practical Training, and employment based on economic hardship.
As long as you have your USCIS receipt notice with the receipt number you can use the on-line system, which is updated daily. The on-line system provides the identical information that can be obtained by using the Service Center phone numbers.
USCIS also provides a toll-free customer service number at 1-800-375-5283. However, there have been concerns expressed that the operators at the number, who are not USCIS employees and do not have access to your file, do not always provide accurate information. If you are a Binghamton University student or scholar, have submitted an application for any kind of F-1, J-1 or F-2 or J-2 dependent-related benefit and believe you have not received a timely response from a USCIS customer service representative, please contact staff in the Office of International Student and Scholar Services for assistance.