КодСтранаРегионГородОператорДобавлено
+13-01СШАMD W Maryland: Silver Spring, Frederick, Camp Spring2013-08-22
+13-01СШАRockville, MD2013-10-18
+130-18-58СШАPrince George'sGlenn Dale, MDVerizon Maryland, Landline2013-10-18