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: 445

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-445 A Marlboro MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
774-445 0 Marlboro MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2021-01-07   
774-445 1 Marlboro MA   892D ONVOY, LLC - MA 128   2023-09-18   
774-445 2 Marlboro MA   892D ONVOY, LLC - MA 128   2021-07-27   
774-445 3 Marlboro MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2025-10-22   
774-445 5 Marlboro MA   624H ONVOY SPECTRUM, LLC 128   2021-04-10   
774-445 6 Marlboro MA   892D ONVOY, LLC - MA 128   2021-03-07   
774-445 7 Marlboro MA   892D ONVOY, LLC - MA 128   2021-03-07   
774-445 8 Marlboro MA   892D ONVOY, LLC - MA 128   2021-03-07   
774-445 9 Marlboro MA   892D ONVOY, LLC - MA 128   2021-03-07   

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

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