Local Calling Guide

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

NXX: 228

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-228 A Watertown MA CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128      
857-228 0 Watertown MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-27   
857-228 1 Watertown MA CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128   2001-09-24   
857-228 2 Watertown MA BSTNMACODS7  4084 PAETEC COMMUNICATIONS, INC.- MA 128   2013-03-19   
857-228 3 Watertown MA   892D ONVOY, LLC - MA 128   2010-03-15   
857-228 4 Watertown MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-03-21   
857-228 5 Watertown MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-03-21   
857-228 6 Watertown MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-02-23   
857-228 7 Watertown MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-05   
857-228 8 Watertown MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-01-02   
857-228 9 Watertown MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-05   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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