Check your case status online at the USCIS Case Status page using your receipt number
Create or sign in to a USCIS online account to view updates
Use the USCIS case status mobile app if available
Call USCIS Customer Service at 1-800-375-5283
If you are outside the United States, contact the nearest U.S. embassy or consulate
Check your mail for USCIS notices, approval letters, or requests for evidence
If your green card was already approved, use USCIS Case Status or the USCIS online account to track card production and mailing
If you filed through an attorney, ask them to check the status for you