Local Calling Guide

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NPA: 774 [Rate centres in NPA 774] [Dial plan for NPA 774]

NXX: 458

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-458 A Dover MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
774-458 0 Dover MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2014-11-23   
774-458 1 Dover MA   515J IP HORIZON LLC 128   2016-06-26   
774-458 2 Dover MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2022-06-04   
774-458 3 Dover MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2016-12-09   
774-458 5 Dover MA   624H ONVOY SPECTRUM, LLC 128   2021-04-08   
774-458 6 Dover MA   490J DISH WIRELESS, LLC 128   2023-06-05   
774-458 7 Dover MA   892D ONVOY, LLC - MA 128   2016-04-04   
774-458 8 Dover MA   515J IP HORIZON LLC 128   2015-10-26   
774-458 9 Dover MA   892D ONVOY, LLC - MA 128   2016-04-04   

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

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