Main office Physical Address: 830 Pale San Vitores Rd, Tamuning, 96913, Guam > Location Map Phone: 1-671-646-1243 Office Hours: 8:30 am to 5:00 pm Hotel Nikko Guam Sales Office (Temporarily closed) Physical Address: Nikko Hotel > Location Map Phone: 1-671-646-3499 Office Hours: Temporarily closed