Telephone companiesXO COMMUNICATIONS 2233 S. Wacker Dr. Ste 3510, Chicago IL, 60606 Call DirectionsContact detailsPhone312-377-1066Fax630-371-2413Emailvladislav.cvijanovic@xo.comContactVlado CvijanovićAddress233 S. Wacker Dr. Ste 3510, Chicago IL, 60606Request an updateReport a problem