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: 576

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-576 A North Attleboro MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-576 0 North Attleboro MA   624H ONVOY SPECTRUM, LLC 128   2021-12-20   
508-576 1 North Attleboro MA   515J IP HORIZON LLC 128   2015-03-26   
508-576 2 North Attleboro MA   732H BARR TELL USA, INC. - MA 128   2016-01-01   
508-576 3 North Attleboro MA   490J DISH WIRELESS, LLC 128   2024-06-13   
508-576 4 North Attleboro MA   7135 TC SYSTEMS, INC. 128   2012-11-26   
508-576 5 North Attleboro MA   892D ONVOY, LLC - MA 128   2016-03-28   
508-576 6 North Attleboro MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-576 7 North Attleboro MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-576 8 North Attleboro MA   318J COMCAST IP PHONE, LLC 128   2015-01-13   
508-576 9 North Attleboro MA   490J DISH WIRELESS, LLC 128   2026-04-02   

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

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