First you need to check which field office located near with Find office finder tools. Then check your eligibility to get appointment with USCIS office over phone. To Schedule your appointment with a field office, you must call the USCIS Contact Center at 800-375-5283 (TTY 800-767-1833).
Note : They will only make 2 attempts to reach you. If you don’t answer, you go back to step 1
USCIS offices and asylum offices have opened non-emergency appointment services to the public. The following precaution are taken during COVID-19 situation as per following.