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.

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
617-681 0 Charlestown MA CMBRMAMQDS0  128      
617-681 1 Charlestown MA CMBRMAMQDS0  128      
617-681 6 Charlestown MA CMBRMAMQDS0  128      
617-684 A Somerville MA CMBRMAMQDS0  128      
617-684 0 Somerville MA CMBRMAMQDS0  128      
617-684 1 Somerville MA CMBRMAMQDS0  128      
617-684 2 Somerville MA CMBRMAMQDS0  128      
617-684 4 Somerville MA CMBRMAMQDS0  128      
617-684 8 Somerville MA CMBRMAMQDS0  128      
617-684 9 Somerville MA CMBRMAMQDS0  128      
617-687 A Quincy MA BSTPMALLDS1  128      
617-687 0 Quincy MA BSTPMALLDS1  128      
617-687 1 Quincy MA BSTPMALLDS1  128      
617-687 2 Quincy MA BSTPMALLDS1  128      
617-687 4 Quincy MA BSTPMALLDS1  128      
617-687 5 Quincy MA BSTPMALLDS1  128      
617-687 6 Quincy MA BSTPMALLDS1  128      
617-687 7 Quincy MA BSTPMALLDS1  128      
617-687 8 Quincy MA BSTPMALLDS1  128      
617-701 A South Boston MA CMBRMAMQDS0  128      
617-701 0 South Boston MA CMBRMAMQDS0  128      
617-701 1 South Boston MA CMBRMAMQDS0  128      
617-701 2 South Boston MA CMBRMAMQDS0  128      
617-701 5 South Boston MA CMBRMAMQDS0  128      
617-701 9 South Boston MA CMBRMAMQDS0  128   2005-07-22   
617-706 4 Quincy MA BSTPMALLDS1  128   2010-10-22   
617-706 5 Quincy MA BSTPMALLDS1  128   2010-10-22   
617-706 6 Quincy MA BSTPMALLDS1  128   2010-10-22   
617-706 7 Quincy MA BSTPMALLDS1  128   2010-10-22   
617-706 8 Quincy MA BSTPMALLDS1  128   2010-10-22   
617-714 7 Cambridge MA BSTPMALLDS1  128   2009-04-27   
617-714 8 Cambridge MA BSTPMALLDS1  128   2009-04-09   
617-716 A East Boston MA CMBRMAMQDS0  128      
617-716 0 East Boston MA CMBRMAMQDS0  128      
617-716 1 East Boston MA CMBRMAMQDS0  128      
617-716 2 East Boston MA CMBRMAMQDS0  128      
617-716 3 East Boston MA CMBRMAMQDS0  128      
617-716 4 East Boston MA CMBRMAMQDS0  128      
617-716 5 East Boston MA BSTPMALLDS1  128   2005-10-14   
617-716 6 East Boston MA BSTPMALLDS1  128   2005-10-14   
617-729 6 Quincy MA BSTPMALLDS1  128   2010-10-22   
617-729 7 Quincy MA BSTPMALLDS1  128   2010-10-22   
617-729 8 Quincy MA BSTPMALLDS1  128   2010-10-22   
617-729 9 Quincy MA BSTPMALLDS1  128   2010-10-22   
617-778 9 Boston MA CMBRMAMQDS0  128   2003-08-10   
617-793 2 Quincy MA BSTPMALLDS1  128   2010-10-22   
617-793 3 Quincy MA BSTPMALLDS1  128   2010-10-22   
617-793 4 Quincy MA BSTPMALLDS1  128   2010-10-22   
617-793 5 Quincy MA BSTPMALLDS1  128   2010-10-22   
617-793 6 Quincy MA BSTPMALLDS1  128   2010-10-22   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 >>

Last updated: Sun, 07 Feb 2021 01:52:50 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.