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: 618

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-618 A Brighton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2026-01-25   
857-618 7 Brighton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2026-01-25   
857-618 8 Brighton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2026-01-25   
857-618 9 Brighton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2026-01-25   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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