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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Switch: CMBSMA013MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
617-802 2 Cambridge MA 428H AIRUS, INC. - MA 128   2021-03-25   
617-802 3 Cambridge MA 428H AIRUS, INC. - MA 128   2021-03-25   
774-397 A Sturbridge MA 428H AIRUS, INC. - MA 128      
774-397 1 Sturbridge MA 428H AIRUS, INC. - MA 128   2019-11-21   
774-398 A Brockton MA 428H AIRUS, INC. - MA 128      
774-398 1 Brockton MA 428H AIRUS, INC. - MA 128   2019-11-23   
774-403 A Medfield MA 428H AIRUS, INC. - MA 128      
774-403 1 Medfield MA 428H AIRUS, INC. - MA 128   2019-11-28   
857-302 A Boston MA 428H AIRUS, INC. - MA 128      
857-302 1 Boston MA 428H AIRUS, INC. - MA 128   2014-10-04   
857-355 A Everett MA 428H AIRUS, INC. - MA 128      
857-355 1 Everett MA 428H AIRUS, INC. - MA 128   2019-11-28   
978-519 A Haverhill MA 428H AIRUS, INC. - MA 128      
978-519 1 Haverhill MA 428H AIRUS, INC. - MA 128   2016-05-02   
978-718 A Ashburnham MA 428H AIRUS, INC. - MA 128      
978-718 1 Ashburnham MA 428H AIRUS, INC. - MA 128   2019-11-21   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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