Local Calling Guide

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

Region: MA

OCN: 316E YMAX COMMUNICATIONS CORP. - MA

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
857-216 A Newton MA CMBRMAMQDS3  128      
857-216 0 Newton MA CMBRMAMQDS3  128   2009-12-18   
857-216 1 Newton MA   128   2009-12-18   
857-243 8 Boston MA CMBRMAMQDS3  128   2010-05-03   
857-243 9 Boston MA CMBRMAMQDS3  128   2010-05-03   
857-245 A Brookline MA CMBRMAMQDS3  128      
857-245 0 Brookline MA CMBRMAMQDS3  128   2006-12-29   
857-245 1 Brookline MA CMBRMAMQDS3  128   2006-12-29   
857-245 2 Brookline MA   128   2006-12-29   
857-245 3 Brookline MA CMBRMAMQDS3  128   2006-12-29   
857-245 4 Brookline MA CMBRMAMQDS3  128   2006-12-29   
857-288 0 Boston MA CMBRMAMQDS3  128   2008-07-18   
857-547 9 Jamaica Plain MA CMBRMAMQDS3  128   2010-05-03   
857-574 2 East Boston MA CMBRMAMQDS3  128   2008-09-28   
857-574 6 East Boston MA CMBRMAMQDS3  128   2011-01-24   

Last updated: Sun, 17 May 2026 03:26:51 UTC

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