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: 521

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-521 A Brockton MA   829J PAETEC ITEL, LLC 128      
508-521 0 Brockton MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2006-05-16   
508-521 1 Brockton MA   829J PAETEC ITEL, LLC 128      
508-521 2 Brockton MA   829J PAETEC ITEL, LLC 128      
508-521 3 Brockton MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2007-11-11   
508-521 4 Brockton MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2007-11-11   
508-521 5 Brockton MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2007-11-11   
508-521 6 Brockton MA   829J PAETEC ITEL, LLC 128   2006-02-16   
508-521 7 Brockton MA   5562 METROPCS, INC. 128   2006-05-04   
508-521 8 Brockton MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2014-02-18   
508-521 9 Brockton MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   

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

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