Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 351 [Rate centres in NPA 351] [Dial plan for NPA 351]

NXX: 224

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
351-224 A Barre MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
351-224 1 Barre MA   490J DISH WIRELESS, LLC 128   2023-12-01   
351-224 2 Barre MA   624H ONVOY SPECTRUM, LLC 128   2021-09-19   
351-224 4 Barre MA   892D ONVOY, LLC - MA 128   2021-09-18   
351-224 5 Barre MA   892D ONVOY, LLC - MA 128   2021-09-18   
351-224 8 Barre MA   892D ONVOY, LLC - MA 128   2023-11-03   
351-224 9 Barre MA   892D ONVOY, LLC - MA 128   2023-11-03   

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

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