Local Calling Guide

Area code/prefix search

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

NXX: 271

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-271 A Dorchester MA   892D ONVOY, LLC - MA 128      
857-271 1 Dorchester MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-06-15   
857-271 2 Dorchester MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-06-15   
857-271 3 Dorchester MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2013-10-03   
857-271 4 Dorchester MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-10-12   
857-271 5 Dorchester MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-10-12   
857-271 6 Dorchester MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2014-12-15   
857-271 7 Dorchester MA BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128   2014-04-30   
857-271 8 Dorchester MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2014-04-30   
857-271 9 Dorchester MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2014-04-30   

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

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