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.

Switch: SOVLMAAB6MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
857-375 0 Dorchester MA 939H COMMIO, LLC 128      
857-375 1 Dorchester MA 939H COMMIO, LLC 128      
857-375 2 Dorchester MA 939H COMMIO, LLC 128      
857-375 3 Dorchester MA 939H COMMIO, LLC 128      
857-375 9 Dorchester MA 939H COMMIO, LLC 128      
857-376 0 Brookline MA 939H COMMIO, LLC 128      
857-376 2 Brookline MA 939H COMMIO, LLC 128      
857-379 1 Roxbury MA 939H COMMIO, LLC 128      
857-379 2 Roxbury MA 939H COMMIO, LLC 128      
857-379 8 Roxbury MA 939H COMMIO, LLC 128      
857-379 9 Roxbury MA 939H COMMIO, LLC 128      
857-388 A Somerville MA 939H COMMIO, LLC 128      
857-388 0 Somerville MA 939H COMMIO, LLC 128      
857-388 1 Somerville MA 939H COMMIO, LLC 128      
857-388 2 Somerville MA 939H COMMIO, LLC 128      
857-443 A Boston MA 939H COMMIO, LLC 128      
857-443 3 Boston MA 939H COMMIO, LLC 128      
857-550 A Belmont MA 939H COMMIO, LLC 128      
857-550 0 Belmont MA 939H COMMIO, LLC 128      
857-550 1 Belmont MA 939H COMMIO, LLC 128      
857-550 2 Belmont MA 939H COMMIO, LLC 128      
857-550 3 Belmont MA 939H COMMIO, LLC 128      
857-550 4 Belmont MA 939H COMMIO, LLC 128      
978-625 0 Billerica MA 939H COMMIO, LLC 128      
978-625 1 Billerica MA 939H COMMIO, LLC 128      
978-645 0 Lawrence MA 939H COMMIO, LLC 128      
978-677 5 Lowell MA 939H COMMIO, LLC 128      
978-834 9 Amesbury MA 939H COMMIO, LLC 128      
978-984 8 Lawrence MA 939H COMMIO, LLC 128      

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Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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