Call toll-free 1-800-375-5283 or 1-800-767-1833 (TDD for the hearing impaired)
Schedule an appointment at a Field Office
If you have a question about a filing mailed to the Chicago, Dallas, or Phoenix Lockbox.
If you contacted the NCSC and 30 days have passed without a response
Find the status of your case and sign up to receive automatic case status updates
Contact the Public Engagement program or a community relations officer
Located at 25 U.S. Embassies and Consulates in 22 countries
For employment-based immigration EB-5 inquiries
Speak with USCIS spokesperson regarding media inquiries
Email for general immigration inquiries
Call E-Verify customer support at 1-888-464-4218 or email
To visit, or for a research appointment or other assistance
Questions about adoptions from Hague and Non Hague Convention countries
Report violations, misconduct or abuses by employees
Questions about the USCIS Genealogy program or make an online request
Military and family member assistance line
FOIA and Privacy Act inquirie
Provide website-related feedback
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 LockboxSupport@uscis.dhs.gov 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, https://infopass.uscis.gov , to make an appointment at your local USCIS office.
USCIS Service Centers
If you contacted the National Customer Service Center with a case-related inquiry and more than 30 days have passed and you have not received a response, you may email the appropriate USCIS Service Center with your inquiry:
- California Service Center: email@example.com
- Vermont Service Center: firstname.lastname@example.org
- Nebraska Service Center: NSCFollowup.NCSC@uscis.dhs.gov
- Texas Service Center: email@example.com
If you do not receive a response within 21 days of contacting the Service Center, you may contact the USCIS Headquarters Office of Service Center Operations by email at SCOPSSCATA@dhs.gov.
For questions about adoptions from Hague Convention countries, please call 1-877-424-8374 or send an e-mail to NBC.Hague@dhs.gov.
For questions about non-Hague adoption cases, please e-mail: NBC.Adoptions@dhs.gov.
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 CISHistory.Library@dhs.gov.
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.
Before I File
After I File
- Submit an e-Request for an N-400 or I-90
- Online Change of Address
- Check My Case Status
- Sign-up for Case Updates
- While My Case is Pending
- After Receiving a Decision