Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 4536 XO MASSACHUSETTS, INC.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
508-590 6 Franklin MA BSTPMALLDS1  128      
508-590 7 Franklin MA BSTPMALLDS1  128      
508-590 8 Franklin MA BSTPMALLDS1  128      
508-597 A Marlboro MA CMBRMAMQDS0  128      
508-597 0 Marlboro MA CMBRMAMQDS0  128      
508-597 1 Marlboro MA CMBRMAMQDS0  128      
508-597 2 Marlboro MA CMBRMAMQDS0  128      
508-597 3 Marlboro MA CMBRMAMQDS0  128      
508-597 4 Marlboro MA CMBRMAMQDS0  128      
508-597 5 Marlboro MA CMBRMAMQDS0  128   2005-07-30   
508-597 6 Marlboro MA CMBRMAMQDS0  128   2005-07-30   
508-597 7 Marlboro MA BSTPMALLDS1  128   2005-07-30   
508-597 8 Marlboro MA BSTPMALLDS1  128   2005-07-30   
508-597 9 Marlboro MA BSTPMALLDS1  128   2005-07-30   
508-603 4 Upton MA BSTPMALLDS1  128   2006-04-21   
508-617 2 Fall River MA CMBRMAMQDS0  128   2005-12-12   
508-618 A Mansfield MA CMBRMAMQDS0  128      
508-618 0 Mansfield MA CMBRMAMQDS0  128      
508-618 1 Mansfield MA CMBRMAMQDS0  128      
508-618 6 Mansfield MA CMBRMAMQDS0  128      
508-623 5 Foxboro MA BSTPMALLDS1  128   2010-10-22   
508-623 6 Foxboro MA BSTPMALLDS1  128   2010-10-22   
508-623 7 Foxboro MA BSTPMALLDS1  128   2010-10-22   
508-623 8 Foxboro MA BSTPMALLDS1  128   2010-10-22   
508-623 9 Foxboro MA BSTPMALLDS1  128   2010-10-22   
508-629 A Vineyard Haven MA BSTPMALLDS1  128      
508-629 0 Vineyard Haven MA BSTPMALLDS1  128      
508-629 1 Vineyard Haven MA BSTPMALLDS1  128      
508-629 2 Vineyard Haven MA BSTPMALLDS1  128      
508-629 4 Vineyard Haven MA BSTPMALLDS1  128      
508-629 5 Vineyard Haven MA BSTPMALLDS1  128      
508-629 6 Vineyard Haven MA BSTPMALLDS1  128      
508-629 7 Vineyard Haven MA BSTPMALLDS1  128      
508-629 8 Vineyard Haven MA BSTPMALLDS1  128      
508-632 A Harwich MA BSTPMALLDS1  128      
508-632 0 Harwich MA BSTPMALLDS1  128      
508-632 1 Harwich MA BSTPMALLDS1  128      
508-632 2 Harwich MA BSTPMALLDS1  128      
508-632 4 Harwich MA BSTPMALLDS1  128      
508-632 5 Harwich MA BSTPMALLDS1  128      
508-632 6 Harwich MA BSTPMALLDS1  128      
508-632 7 Harwich MA BSTPMALLDS1  128      
508-632 8 Harwich MA BSTPMALLDS1  128      
508-637 A North Brookfield MA CMBRMAMQDS0  128      
508-637 2 North Brookfield MA CMBRMAMQDS0  128   2002-07-26   
508-637 3 North Brookfield MA CMBRMAMQDS0  128   2005-07-30   
508-637 6 North Brookfield MA BSTPMALLDS1  128   2005-07-30   
508-637 8 North Brookfield MA BSTPMALLDS1  128   2005-07-30   
508-637 9 North Brookfield MA BSTPMALLDS1  128   2005-07-30   
508-639 7 Southgate MA BSTPMALLDS1  128   2006-04-20   

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Last updated: Tue, 04 May 2021 15:04:27 UTC

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