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
978-932 2 Billerica MA CMBRMAMQDS0  128      
978-932 3 Billerica MA CMBRMAMQDS0  128      
978-945 A Haverhill MA BSTPMALLDS1  128      
978-945 0 Haverhill MA BSTPMALLDS1  128      
978-945 1 Haverhill MA BSTPMALLDS1  128      
978-945 2 Haverhill MA BSTPMALLDS1  128      
978-945 4 Haverhill MA BSTPMALLDS1  128      
978-945 5 Haverhill MA BSTPMALLDS1  128      
978-945 6 Haverhill MA BSTPMALLDS1  128      
978-945 7 Haverhill MA BSTPMALLDS1  128      
978-945 8 Haverhill MA BSTPMALLDS1  128      
978-953 A Topsfield MA CMBRMAMQDS0  128      
978-953 0 Topsfield MA CMBRMAMQDS0  128      
978-953 1 Topsfield MA CMBRMAMQDS0  128      
978-997 A Newburyport MA CMBRMAMQDS0  128      
978-997 0 Newburyport MA CMBRMAMQDS0  128      
978-997 1 Newburyport MA BSTPMALLDS1  128   2005-10-16   
978-997 4 Newburyport MA CMBRMAMQDS0  128      
978-997 5 Newburyport MA CMBRMAMQDS0  128      

<< 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: VoIP Much Phone Company

Like this site? We accept donations via PayPal.