+54-11-(52000000...52009999): AMBA, Ciudad de Buenos Aires (C) Read more about +54-11-(52000000...52009999)
+54-11-(52010000...52019999): AMBA, Ciudad de Buenos Aires (C) Read more about +54-11-(52010000...52019999)
+54-11-(52020000...52029999): AMBA, Ciudad de Buenos Aires (C) Read more about +54-11-(52020000...52029999)
+54-11-(52030000...52039999): AMBA, Ciudad de Buenos Aires (C) Read more about +54-11-(52030000...52039999)