КодСтранаРегионГородОператорДобавлено
+12-40СШАMD W Maryland: Silver Spring, Frederick, Gaithersbur2013-08-22
+12-40СШАGaithersburg, MD2013-10-18
+124-06-81СШАPrince George'sBrandywine, MDAtx Telecommunications Services, Ltd, Landline2013-10-18