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: 338

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-338 A Vineyard Haven MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-338 0 Vineyard Haven MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-12-20   
508-338 1 Vineyard Haven MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-12-20   
508-338 2 Vineyard Haven MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2012-10-08   
508-338 3 Vineyard Haven MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-05-25   
508-338 4 Vineyard Haven MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-338 5 Vineyard Haven MA   829J PAETEC ITEL, LLC 128   2016-09-16   
508-338 6 Vineyard Haven MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-12-20   
508-338 7 Vineyard Haven MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2015-09-15   
508-338 8 Vineyard Haven MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-12-20   
508-338 9 Vineyard Haven MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2024-03-08   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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