Local Calling Guide

Area code/prefix search

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

NXX: 424

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-424 A Roxbury MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-424 0 Roxbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2019-07-01   
857-424 1 Roxbury MA BSTPMALLOMD  073H TELNYX LLC 128   2017-03-13   
857-424 2 Roxbury MA   515J IP HORIZON LLC 128   2017-07-06   
857-424 3 Roxbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2019-07-01   
857-424 4 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2019-09-20   
857-424 5 Roxbury MA CHTWMABF2MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128   2017-04-16   
857-424 6 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2017-08-18   
857-424 7 Roxbury MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2018-08-06   
857-424 8 Roxbury MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2016-12-16   
857-424 9 Roxbury MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2016-12-16   

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

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