Contact Us

National Customer Service Center (NCSC)

Call toll-free 1-800-375-5283 or 1-800-767-1833 (TDD for the deaf or hard of hearing)

Make an Appointment

Schedule an appointment at a Field Office


If you have a question about a filing mailed to the Chicago, Dallas, or Phoenix Lockbox

USCIS Service Centers

If you contacted the NCSC and 30 days have passed without a response

Case Status

Find the status of your case and sign up to receive automatic case status updates

External Stakeholders

Contact the Public Engagement program or a community relations officer

Offices Outside the U.S.

Located at 25 U.S. Embassies and Consulates in 22 countries

Immigrant Investor Regional Centers

For employment-based immigration EB-5 inquiries


Speak with a USCIS spokesperson regarding media inquiries

Canadian Customers

Email for general immigration inquiries


Call E-Verify customer support at 1-888-464-4218 or email

USCIS Historical Reference Library

To visit, or for a research appointment or other assistance


Questions about adoptions from Hague and Non Hague Convention countries

Report USCIS Employee Misconduct

Report violations, misconduct or abuses by employees

Genealogy Requests

Questions about the USCIS Genealogy program or make an online request

Military Help Line

1-877-CIS-4MIL (1-877-247-4645)

Military and family member assistance line

Freedom of Information Act (FOIA)

FOIA and Privacy Act inquiry

Website Feedback

Provide website-related feedback

USCIS Lockbox

If you have a question about a filing mailed to the Chicago, Dallas, or Phoenix Lockbox, e.g.:

  • You received a rejection notice and have questions about the reason your submission was rejected
  • You have a question about how or where to submit an application or petition that should be filed at one of the three Lockbox locations
  • You have filed more than 30 days ago and you have not yet received a receipt notice
  • You have other concerns or questions about a recent filing at one of the three Lockbox locations

In these situations, you may email us at  and we will answer each email in turn as soon as possible.  Please include the form number, receipt number, petitioner and/or applicant name, and mailing address with your email.  Please do not include social security numbers in emails.

But if your question relates to an application or petition that was filed online or mailed directly to a USCIS service center, or an application or petition that has already been accepted by the Lockbox, or if you have a question about your eligibility to file, you should instead call the National Customer Service Center (NCSC) on (800) 375-5283, or contact the service center or office processing your case, via the email addresses below, or use the InfoPass system on our website,, to make an appointment at your local USCIS office.

USCIS Service Centers

You may email the corresponding USCIS service center with an inquiry related to your case if:

  • You contacted national customer service (by calling the National Customer Service Center or submitting an on-line case inquiry) and a service request was generated;  and
  • More than 30 days have passed and you have not received a response.

The service center follow-up email addresses are:

Note: The National Benefits Center (NBC) in Missouri is not a USCIS service center. For assistance with cases at the NBC, please contact the NCSC .

When contacting a service center, please include the following:

  • Your name and role (for example, petitioner, applicant, or attorney of record);
    Note: We can only provide case-specific information to authorized individuals (for example, petitioners, applicants, and attorneys of record). We cannot provide case-specific information to unauthorized third parties.
  • The petitioner or applicant’s name (if you are not the petitioner or applicant);
  • The receipt number, form number, and type of immigration benefit being sought for the case about which you are inquiring;
  • The NCSC inquiry information, including:
    • The date you contacted the NCSC,
    • The service request number that you were given,
    • If available, the name of the NCSC customer service representative you spoke to, and
    • If you called the NCSC and they informed you they were unable to complete a service request, please provide a brief explanation.

Please do not include the following:

  • Sensitive Personally Identifiable Information (SPII): Emails may not necessarily be secure. Therefore, we suggest that you do not email sensitive PII (such as your Social Security number) to us.
  • Supporting documentation for your case: You must submit all documentation for your case according to the form instructions.

If you do not receive a satisfactory response within 21 days of contacting the service center, you may email the USCIS headquarters office of Service Center Operations at Please follow the requirements outlined above when submitting your inquiry to SCOPSSCATA. Include in your inquiry your name, role, case identifier, NCSC service request information and:

  • The service center inquiry information
  • The date of your inquiry to the service center
  • A summary of any response that you received from the service center
  • A forwarded copy of your inquiry to the service center’s email box and any response, if available.

International Adoptions

For questions about Hague or non-Hague adoption cases, please call 1-877-424-8374 or send an e-mail:

USCIS Historical Reference Library

The USCIS Historical Reference Library is located at:

111 Massachusetts Avenue NW
First Floor (MS 2180)
Washington DC 20529-2180

The Library is open to non-USCIS researchers by appointment only. For a research appointment or other assistance, please email

Website Feedback

If you would like to provide feedback on this website, you may email us at Para español

Do not send information about specific cases to this address. We only accept website-related comments.

Although we will read every email message within two business days, due to the number of messages, we may not respond to each message we receive.


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