Local Calling Guide

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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 607

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-607 A West Chesterfield NH DOVRNHTHXJX  478J NUSO, LLC 122      
603-607 1 West Chesterfield NH DOVRNHTHXJX  478J NUSO, LLC 122      
603-607 2 West Chesterfield NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122      
603-607 5 West Chesterfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-607 6 West Chesterfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-607 7 West Chesterfield NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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