Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 857 [Rate centres in NPA 857] [Dial plan for NPA 857]

NXX: 728

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-728 A Jamaica Plain MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-728 0 Jamaica Plain MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-728 1 Jamaica Plain MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-09-21   
857-728 2 Jamaica Plain MA CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128   2001-09-24   
857-728 3 Jamaica Plain MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2010-03-15   
857-728 4 Jamaica Plain MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2002-01-29   
857-728 5 Jamaica Plain MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-728 6 Jamaica Plain MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-01-03   
857-728 7 Jamaica Plain MA BSTPMALLZMD  506J TWILIO INTERNATIONAL, INC. 128   2020-12-19   
857-728 8 Jamaica Plain MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2020-06-21   
857-728 9 Jamaica Plain MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2019-07-12   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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