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.
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OCN: 4536 XO MASSACHUSETTS, INC.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
781-512 A Lincoln MA CMBRMAMQDS0  128      
781-512 0 Lincoln MA CMBRMAMQDS0  128      
781-512 1 Lincoln MA CMBRMAMQDS0  128      
781-517 A Melrose MA CMBRMAMQDS0  128      
781-517 0 Melrose MA CMBRMAMQDS0  128      
781-517 1 Melrose MA CMBRMAMQDS0  128      
781-517 4 Melrose MA CMBRMAMQDS0  128      
781-536 0 Marshfield MA CMBRMAMQDS0  128   2004-05-31   
781-566 1 Marshfield MA BSTPMALLDS1  128   2006-05-18   
781-574 A Arlington MA CMBRMAMQDS0  128      
781-574 0 Arlington MA CMBRMAMQDS0  128      
781-574 1 Arlington MA CMBRMAMQDS0  128      
781-574 2 Arlington MA CMBRMAMQDS0  128      
781-574 4 Arlington MA CMBRMAMQDS0  128      
781-574 5 Arlington MA CMBRMAMQDS0  128      
781-577 4 Waltham MA BSTPMALLDS1  128   2011-12-19   
781-583 5 Arlington MA BSTPMALLDS1  128   2007-04-30   
781-602 1 Braintree MA BSTPMALLDS1  128   2010-10-22   
781-602 3 Braintree MA BSTPMALLDS1  128   2010-10-22   
781-602 4 Braintree MA BSTPMALLDS1  128   2010-10-22   
781-602 5 Braintree MA BSTPMALLDS1  128   2010-10-22   
781-602 7 Braintree MA BSTPMALLDS1  128   2010-10-22   
781-602 8 Braintree MA BSTPMALLDS1  128   2010-10-22   
781-610 7 Rockland MA BSTPMALLDS1  128   2005-08-14   
781-610 8 Rockland MA BSTPMALLDS1  128   2005-08-14   
781-610 9 Rockland MA BSTPMALLDS1  128   2005-08-14   
781-618 6 Whitman MA BSTPMALLDS1  128   2006-08-07   
781-623 A Lynnfield MA BSTPMALLDS1  128      
781-623 0 Lynnfield MA BSTPMALLDS1  128      
781-623 1 Lynnfield MA BSTPMALLDS1  128      
781-623 2 Lynnfield MA BSTPMALLDS1  128      
781-623 4 Lynnfield MA BSTPMALLDS1  128      
781-623 5 Lynnfield MA BSTPMALLDS1  128      
781-623 6 Lynnfield MA BSTPMALLDS1  128      
781-623 7 Lynnfield MA BSTPMALLDS1  128      
781-623 8 Lynnfield MA BSTPMALLDS1  128      
781-628 A Medford MA CMBRMAMQDS0  128      
781-628 0 Medford MA CMBRMAMQDS0  128      
781-628 1 Medford MA CMBRMAMQDS0  128      
781-628 4 Medford MA CMBRMAMQDS0  128      
781-634 A Norwood MA BSTPMALLDS1  128      
781-634 0 Norwood MA BSTPMALLDS1  128      
781-634 1 Norwood MA BSTPMALLDS1  128      
781-634 2 Norwood MA BSTPMALLDS1  128      
781-634 4 Norwood MA BSTPMALLDS1  128      
781-634 5 Norwood MA BSTPMALLDS1  128      
781-634 6 Norwood MA BSTPMALLDS1  128      
781-634 7 Norwood MA BSTPMALLDS1  128      
781-634 8 Norwood MA BSTPMALLDS1  128      
781-636 A Dedham MA CMBRMAMQDS0  128      

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

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