КодСтранаРегионГородОператорДобавлено
+1 312 СШАIL Illinois: Chicago (downtown only -- in the loop;2013-08-22
+1 312 СШАChicago, IL2013-10-18
+1 312 660СШАCookChicago, ILTeleport Communications Group - Chicago, Landline2013-10-18