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: 639

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-639 A Cambridge MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128      
857-639 0 Cambridge MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-639 1 Cambridge MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-639 2 Cambridge MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-639 3 Cambridge MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-639 4 Cambridge MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-639 5 Cambridge MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
857-639 6 Cambridge MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
857-639 7 Cambridge MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128      
857-639 8 Cambridge MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-639 9 Cambridge MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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