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: 226

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
351-226 A Westford MA SOVLMAABJMD  598J FIVE9, INC. 128      
351-226 0 Westford MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2022-10-06   
351-226 1 Westford MA   598J FIVE9, INC. 128   2023-03-24   
351-226 2 Westford MA   516J TON80 COMMUNICATIONS, LLC 128   2022-04-01   
351-226 3 Westford MA   892D ONVOY, LLC - MA 128   2023-11-03   
351-226 4 Westford MA   892D ONVOY, LLC - MA 128   2023-07-03   
351-226 5 Westford MA   624H ONVOY SPECTRUM, LLC 128   2022-01-16   
351-226 6 Westford MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2025-12-07   
351-226 7 Westford MA   892D ONVOY, LLC - MA 128   2023-11-03   
351-226 8 Westford MA   892D ONVOY, LLC - MA 128   2023-11-03   
351-226 9 Westford MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2021-12-19   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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