Local Calling Guide

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NPA: 857 [Rate centres in NPA 857] [Dial plan for NPA 857]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-728 6 Jamaica Plain MA   892D ONVOY, LLC - MA 128   2021-01-03   
857-728 8 Jamaica Plain MA   892D ONVOY, LLC - MA 128   2020-06-21   
857-728 9 Jamaica Plain MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2019-07-12   
857-737 A Watertown MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128      
857-737 0 Watertown MA   892D ONVOY, LLC - MA 128   2023-08-17   
857-737 1 Watertown MA   892D ONVOY, LLC - MA 128   2023-08-17   
857-737 2 Watertown MA   892D ONVOY, LLC - MA 128   2023-07-08   
857-737 3 Watertown MA   892D ONVOY, LLC - MA 128   2023-07-08   
857-737 4 Watertown MA   624H ONVOY SPECTRUM, LLC 128   2024-12-06   
857-737 7 Watertown MA   516J TON80 COMMUNICATIONS, LLC 128   2022-05-26   
857-737 8 Watertown MA   892D ONVOY, LLC - MA 128   2022-05-27   
857-737 9 Watertown MA   892D ONVOY, LLC - MA 128   2024-03-08   
857-746 A Brookline MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128      
857-746 0 Brookline MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-06-13   
857-746 1 Brookline MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-06-13   
857-746 2 Brookline MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-09-04   
857-746 3 Brookline MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-09-04   
857-746 4 Brookline MA   892D ONVOY, LLC - MA 128   2022-09-29   
857-746 5 Brookline MA   892D ONVOY, LLC - MA 128   2022-09-29   
857-746 6 Brookline MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-10-05   
857-746 7 Brookline MA   516J TON80 COMMUNICATIONS, LLC 128   2022-04-15   
857-746 8 Brookline MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-08-25   
857-746 9 Brookline MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-08-25   
857-753 A Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-753 0 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2005-10-05   
857-753 1 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2005-10-05   
857-753 2 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2005-10-06   
857-753 3 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2005-10-06   
857-753 4 Boston MA   318J COMCAST IP PHONE, LLC 128   2005-10-24   
857-753 5 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2005-10-06   
857-753 6 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2005-10-06   
857-753 7 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2005-10-06   
857-753 8 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2005-10-06   
857-753 9 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2005-10-06   
857-754 A Quincy MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-754 0 Quincy MA   073H TELNYX LLC 128   2021-03-04   
857-754 1 Quincy MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2021-04-16   
857-754 2 Quincy MA   892D ONVOY, LLC - MA 128   2021-03-28   
857-754 3 Quincy MA   892D ONVOY, LLC - MA 128   2021-03-28   
857-754 4 Quincy MA   892D ONVOY, LLC - MA 128   2021-02-07   
857-754 5 Quincy MA   892D ONVOY, LLC - MA 128   2021-02-07   
857-754 6 Quincy MA   892D ONVOY, LLC - MA 128   2021-02-07   
857-754 7 Quincy MA   892D ONVOY, LLC - MA 128   2021-02-07   
857-754 8 Quincy MA   624H ONVOY SPECTRUM, LLC 128   2021-04-12   
857-754 9 Quincy MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2021-04-16   
857-755 A Quincy MA SOVLMAABAMD  965H FRACTEL, LLC 128      
857-755 0 Quincy MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2020-12-01   
857-755 1 Quincy MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2020-12-01   
857-755 2 Quincy MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2020-12-01   
857-755 3 Quincy MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2020-12-01   
857-755 4 Quincy MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2021-05-12   
857-755 5 Quincy MA   965H FRACTEL, LLC 128   2020-11-01   
857-755 6 Quincy MA   939H COMMIO, LLC 128   2024-03-04   
857-755 8 Quincy MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2023-10-12   
857-755 9 Quincy MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2020-12-19   
857-756 A Cambridge MA CMBRMABEX9Y  0334 METROPOLITAN TELECOMMUNICATIONS OF MASS DBA METTEL 128      
857-756 0 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-08-18   
857-756 1 Cambridge MA   0334 METROPOLITAN TELECOMMUNICATIONS OF MASS DBA METTEL 128   2005-09-17   
857-756 2 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-11-12   
857-756 3 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-08-18   
857-756 4 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2010-06-14   
857-756 5 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-12-04   
857-756 6 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2010-06-14   
857-756 7 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2010-06-14   
857-756 8 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2009-03-02   
857-756 9 Cambridge MA   145J TERRA NOVA TELECOM INC. 128   2024-02-07   
857-757 A Cambridge MA   507J THE VOICE APPLICATION NETWORK, LLC 128   2025-04-21   
857-757 0 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-05-20   
857-757 1 Cambridge MA   507J THE VOICE APPLICATION NETWORK, LLC 128   2015-06-02   
857-757 2 Cambridge MA   732H BARR TELL USA, INC. - MA 128   2015-12-31   
857-757 3 Cambridge MA   892D ONVOY, LLC - MA 128   2021-12-06   
857-757 4 Cambridge MA   508J CENTURYLINK COMMUNICATIONS, LLC 128   2018-02-22   
857-757 5 Cambridge MA   508J CENTURYLINK COMMUNICATIONS, LLC 128   2018-02-22   
857-757 6 Cambridge MA   508J CENTURYLINK COMMUNICATIONS, LLC 128   2018-02-22   
857-757 7 Cambridge MA   508J CENTURYLINK COMMUNICATIONS, LLC 128   2018-02-22   
857-757 8 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2018-12-20   
857-757 9 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2018-12-20   
857-758 A Boston MA SOVLMAABAMD  965H FRACTEL, LLC 128      
857-758 0 Boston MA   892D ONVOY, LLC - MA 128   2023-10-06   
857-758 1 Boston MA   892D ONVOY, LLC - MA 128   2022-11-03   
857-758 2 Boston MA   892D ONVOY, LLC - MA 128   2021-07-18   
857-758 3 Boston MA   892D ONVOY, LLC - MA 128   2021-07-18   
857-758 4 Boston MA   892D ONVOY, LLC - MA 128   2021-07-18   
857-758 5 Boston MA   892D ONVOY, LLC - MA 128   2021-07-18   
857-758 6 Boston MA   965H FRACTEL, LLC 128   2021-06-28   
857-758 7 Boston MA   892D ONVOY, LLC - MA 128   2021-07-18   
857-758 8 Boston MA   892D ONVOY, LLC - MA 128   2021-07-18   
857-758 9 Boston MA   892D ONVOY, LLC - MA 128   2022-11-03   
857-760 A Watertown MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-760 0 Watertown MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2016-08-20   
857-760 1 Watertown MA   073H TELNYX LLC 128   2017-04-27   
857-760 2 Watertown MA   7135 TC SYSTEMS, INC. 128   2016-09-15   
857-760 3 Watertown MA   7135 TC SYSTEMS, INC. 128   2016-11-07   
857-760 4 Watertown MA   892D ONVOY, LLC - MA 128   2017-05-10   
857-760 6 Watertown MA   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2018-10-30   
857-760 7 Watertown MA   318J COMCAST IP PHONE, LLC 128   2019-03-19   
857-760 8 Watertown MA   892D ONVOY, LLC - MA 128   2019-02-11   
857-760 9 Watertown MA   892D ONVOY, LLC - MA 128   2019-02-11   
857-762 A Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-762 0 Boston MA   508J CENTURYLINK COMMUNICATIONS, LLC 128   2016-09-10   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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