CM Template AT&T - Cornerstar Share: Telecommunication Sales & Service/Telephone Equipment AT&T - Cornerstar Visit Website 6755 Cornerstar Way Suite C Aurora, CO 80016 (303) 680-9028 Rep Info Whom to Contact Michelle Doherty Phone: (404) 398-8703 Larry Gutierrez Phone: (303) 343-4192 Camille MacKeage Phone: (303) 513-8826 Joanna Orihuela Phone: (303) 680-9028 Candice Pineda Phone: (303) 680-9028