Comprehensive Immigration/Naturalization Services | United States Citizenship and Immigration Services

111 Massachusetts Ave NW, Washington, DC 20529-2260

Eligibility

Varies by service

Hours

Mon-Fri 8am-8pm Eastern Time customer service 24-hours automated service

Voice - Toll-Free

Languages

English, Spanish

Application process

Call, visit website, or write

Fees

Vary by application and petition

Service area

Administers programs related to the lawful immigration to the United States.

10/01/2025

Providing organization

United States Citizenship and Immigration Services

Administers programs related to the lawful immigration to the United States.