КодСтранаРегионГородОператорДобавлено
+1 617 СШАMA Massachusetts: greater Boston (see overlay 857)2013-08-22
+1 617 СШАBoston, MA2013-10-18
+1 617 612СШАMiddlesexWatertown, MATeleport Communications Group - Boston, Landline2013-10-18