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
857-588 9 Charlestown MA   4536 XO MASSACHUSETTS, INC. 128      
857-598 A Milton MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
857-598 0 Milton MA   4536 XO MASSACHUSETTS, INC. 128      
857-598 1 Milton MA   4536 XO MASSACHUSETTS, INC. 128      
857-598 2 Milton MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-02-10   
857-598 3 Milton MA   4536 XO MASSACHUSETTS, INC. 128      
857-598 4 Milton MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2003-09-10   
857-598 5 Milton MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-01-04   
857-598 6 Milton MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2011-08-27   
857-598 8 Milton MA   019F CBEYOND COMMUNICATIONS, LLC - MA 128   2010-03-15   
857-598 9 Milton MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2012-03-24   
857-600 A Cambridge MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-05   
857-600 0 Cambridge MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-05   
857-600 1 Cambridge MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-05   
857-600 2 Cambridge MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-05   
857-600 3 Cambridge MA   4536 XO MASSACHUSETTS, INC. 128   2011-06-07   
857-600 4 Cambridge MA   4536 XO MASSACHUSETTS, INC. 128   2011-06-07   
857-600 5 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2011-06-07   
857-600 6 Cambridge MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-06-07   
857-600 7 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2011-06-07   
857-600 8 Cambridge MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-06-07   
857-600 9 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2011-06-07   
857-615 A Boston MA CHFRMADCCM1  5562 METRO PCS, INC. 128   2009-08-10   
857-615 0 Boston MA   5562 METRO PCS, INC. 128   2009-08-10   
857-615 1 Boston MA   5562 METRO PCS, INC. 128   2009-08-10   
857-615 2 Boston MA   5562 METRO PCS, INC. 128   2009-08-10   
857-615 3 Boston MA   5562 METRO PCS, INC. 128   2009-08-10   
857-615 4 Boston MA   5562 METRO PCS, INC. 128   2009-08-10   
857-615 5 Boston MA   5562 METRO PCS, INC. 128   2009-08-10   
857-615 6 Boston MA   5562 METRO PCS, INC. 128   2009-08-10   
857-615 7 Boston MA   5562 METRO PCS, INC. 128   2009-08-10   
857-615 8 Boston MA   5562 METRO PCS, INC. 128   2009-08-10   
857-615 9 Boston MA   5562 METRO PCS, INC. 128   2009-08-10   
857-626 A Belmont MA   7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
857-626 0 Belmont MA   892D ONVOY, LLC - MA 128   2016-03-09   
857-626 1 Belmont MA   019F CBEYOND COMMUNICATIONS, LLC - MA 128   2010-03-15   
857-626 2 Belmont MA   990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-626 3 Belmont MA   7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128   2013-11-19   
857-626 4 Belmont MA   990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-626 5 Belmont MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-10-16   
857-626 6 Belmont MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-10-16   
857-626 7 Belmont MA   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2015-06-12   
857-626 8 Belmont MA   892D ONVOY, LLC - MA 128   2016-02-04   
857-626 9 Belmont MA   892D ONVOY, LLC - MA 128   2016-02-01   
857-636 A Newton MA WRXBMAWACM2  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-636 0 Newton MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-636 1 Newton MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2008-09-01   
857-636 2 Newton MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2007-06-01   
857-636 3 Newton MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-06-26   
857-636 4 Newton MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2012-04-13   

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Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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