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: 233

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-233 A Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-233 0 Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-04-10   
857-233 1 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-06   
857-233 2 Boston MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-06-02   
857-233 3 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-07-13   
857-233 4 Boston MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-06-02   
857-233 5 Boston MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-06-02   
857-233 6 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-07-02   
857-233 7 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-07-02   
857-233 8 Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-05-16   
857-233 9 Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-04-10   

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

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