Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Granby, MA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
413-255 A SPFDMAPM4MD  318J COMCAST IP PHONE, LLC 126      
413-255 0   318J COMCAST IP PHONE, LLC 126   2011-10-23   
413-255 2   624H ONVOY SPECTRUM, LLC 126   2021-09-02   
413-255 3   318J COMCAST IP PHONE, LLC 126   2022-08-28   
413-255 5   624H ONVOY SPECTRUM, LLC 126   2021-04-03   
413-255 6   624H ONVOY SPECTRUM, LLC 126   2021-11-14   
413-255 7   624H ONVOY SPECTRUM, LLC 126   2021-11-14   
413-467 A GRNBMAXADS0  0036 GRANBY TELEPHONE LLC 126      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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