Local Calling Guide

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

NXX: 524

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-524 A South Boston MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-524 0 South Boston MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-524 1 South Boston MA CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128   2001-09-11   
857-524 2 South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-12-30   
857-524 3 South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-12-30   
857-524 4 South Boston MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2002-01-30   
857-524 5 South Boston MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-524 6 South Boston MA BRTNMACOVMD  7135 TC SYSTEMS, INC. 128   2020-05-04   
857-524 7 South Boston MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2020-08-26   
857-524 8 South Boston MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2019-03-06   
857-524 9 South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2018-09-08   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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