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: 385

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-385 A Dorchester MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-385 0 Dorchester MA CMBRMABEQMD  321J HD CARRIER LLC 128   2016-09-03   
857-385 1 Dorchester MA CMBRMABEQMD  321J HD CARRIER LLC 128   2016-09-03   
857-385 2 Dorchester MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2023-04-15   
857-385 3 Dorchester MA CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2016-07-24   
857-385 4 Dorchester MA   321J HD CARRIER LLC 128   2016-09-03   
857-385 5 Dorchester MA   321J HD CARRIER LLC 128   2016-09-03   
857-385 6 Dorchester MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2016-07-23   
857-385 7 Dorchester MA CMBRMABEQMD  321J HD CARRIER LLC 128   2016-09-03   
857-385 8 Dorchester MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2016-10-24   
857-385 9 Dorchester MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2016-10-24   

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

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