Citizenship and Immigration Services (USCIS) is located at 2601 Indiana Ave., Ft. Campbell, KY 40202. Citizenship and Immigration Services (USCIS) can be reached by their main phone number at (270) 798-4432. Alternatively, you can reach Citizenship and Immigration Services (USCIS) by phone at (270) 956-2676. You can also reach Citizenship and Immigration Services (USCIS) by phone at (270) 798-6313. Visit the Citizenship and Immigration Services (USCIS) website by clicking here.