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: 403

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-403 A Cataumet MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-403 0 Cataumet MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-12-29   
508-403 1 Cataumet MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2019-02-23   
508-403 2 Cataumet MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-05-16   
508-403 3 Cataumet MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2019-11-02   
508-403 4 Cataumet MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-403 5 Cataumet MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2020-06-07   
508-403 6 Cataumet MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2020-06-07   
508-403 7 Cataumet MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2020-08-21   
508-403 8 Cataumet MA   145J TERRA NOVA TELECOM INC. 128   2022-08-02   
508-403 9 Cataumet MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2020-08-21   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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