Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 508 [Rate centres in NPA 508] [Dial plan for NPA 508]

NXX: 840

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-840 A Attleboro MA NRTNMAAACM4  5562 METROPCS, INC. 128      
508-840 0 Attleboro MA   5562 METROPCS, INC. 128   2008-12-15   
508-840 1 Attleboro MA   5562 METROPCS, INC. 128   2008-12-15   
508-840 2 Attleboro MA   5562 METROPCS, INC. 128   2008-12-15   
508-840 3 Attleboro MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2009-03-26   
508-840 4 Attleboro MA   5562 METROPCS, INC. 128   2010-07-30   
508-840 5 Attleboro MA   5562 METROPCS, INC. 128   2009-07-09   
508-840 6 Attleboro MA   5562 METROPCS, INC. 128   2009-07-09   
508-840 7 Attleboro MA   5562 METROPCS, INC. 128   2009-07-09   
508-840 8 Attleboro MA   5562 METROPCS, INC. 128   2009-07-09   
508-840 9 Attleboro MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2009-10-19   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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