The National Visa Center is located in Portsmouth New Hampshire and you can call the National Visa Center at 603-334-0700.
You will get an automated system not a live person. You can call 24 hours a day 7 days a week. To get an update on your case you will enter the receipt number from you I-797 (NOA1 or NOA2) or if you have a National Visa Center case number you can enter that. If your case number is not recognized it means that your case has not yet been received by the NVC. Just try again every few days.
If necessary you can get a live person Monday – Friday from 7:30am to 12:00pm Eastern Time. The fax number is 603-334-0791.
The best way to contact the National Visa Center is by email at:
You must put your case number in the subject line of your email. In the body of the email at the top list the applicant’s full name and date of birth (the applicant is the alien) and the petitioners full name and date of birth (the petitioner is the U.S. citizen).
The mailing address for the National Visa Center is:
National Visa Center
32 Rochester Avenue
Portsmouth NH 03801-2909