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: 545

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-545 A Natick MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
508-545 0 Natick MA   318J COMCAST IP PHONE, LLC 128      
508-545 1 Natick MA   318J COMCAST IP PHONE, LLC 128      
508-545 2 Natick MA   318J COMCAST IP PHONE, LLC 128      
508-545 3 Natick MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-03   
508-545 4 Natick MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-03-01   
508-545 5 Natick MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2026-01-07   
508-545 6 Natick MA   8468 FREEDOM RING COMMUNICATIONS, LLC 128   2009-07-15   
508-545 7 Natick MA   892D ONVOY, LLC - MA 128   2021-03-06   
508-545 8 Natick MA   318J COMCAST IP PHONE, LLC 128   2013-04-10   
508-545 9 Natick MA   892D ONVOY, LLC - MA 128   2021-03-06   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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