Army Community Service - Immigration and Naturalization is located at 6303 Wetzel Avenue Bldg. 1526 Located in the ACS Center Fort Carson, CO 80913, , . Army Community Service - Immigration and Naturalization can be reached by their main phone number at (719) 526-0457. Alternatively, you can reach Army Community Service - Immigration and Naturalization by phone at (719) 526-0466. Visit the Army Community Service - Immigration and Naturalization website by clicking here.