Nextel Communications
300 Park Blvd, Ste 100, Itasca, Illinois, 60143-2604
(800) 799-5954
U.S. Cellular
1 Pierce Pl, Ste 1100W, Itasca, Illinois, 60143-2633
(630) 773-1600
Alltel
1400 Norwood Ave, Itasca, Illinois, 60143-1129
(630) 250-8042