Local Calling Guide

Area code/prefix search

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NPA: 508 [Rate centres in NPA 508] [Dial plan for NPA 508]

NXX: 631

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-631 A Brockton MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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