Local Calling Guide

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

NXX: 504

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-504 A Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2024-01-03   
857-504 0 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-504 1 Boston MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
857-504 2 Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-504 3 Boston MA CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
857-504 4 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-504 5 Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-504 6 Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-504 7 Boston MA CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
857-504 8 Boston MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
857-504 9 Boston MA BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      

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

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