Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 774 [Rate centres in NPA 774] [Dial plan for NPA 774]

NXX: 557

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-557 A Buzzards Bay MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
774-557 0 Buzzards Bay MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2021-12-12   
774-557 1 Buzzards Bay MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2022-10-21   
774-557 2 Buzzards Bay MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2022-10-21   
774-557 4 Buzzards Bay MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2022-02-04   
774-557 6 Buzzards Bay MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2022-02-04   
774-557 7 Buzzards Bay MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-05-17   
774-557 8 Buzzards Bay MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2024-03-02   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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