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: 305

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-305 A Marlboro MA   7135 TC SYSTEMS, INC. 128      
508-305 0 Marlboro MA   7135 TC SYSTEMS, INC. 128      
508-305 1 Marlboro MA   7135 TC SYSTEMS, INC. 128      
508-305 2 Marlboro MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2007-02-08   
508-305 3 Marlboro MA   7135 TC SYSTEMS, INC. 128      
508-305 4 Marlboro MA   7135 TC SYSTEMS, INC. 128      
508-305 5 Marlboro MA   829J PAETEC ITEL, LLC 128   2019-03-22   
508-305 6 Marlboro MA   7135 TC SYSTEMS, INC. 128      
508-305 7 Marlboro MA   990E BANDWIDTH.COM CLEC, LLC - MA 128      
508-305 8 Marlboro MA   7135 TC SYSTEMS, INC. 128      
508-305 9 Marlboro MA   7135 TC SYSTEMS, INC. 128      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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