Local Calling Guide

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

NXX: 400

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-400 A Hollis NH MNCHNHCOXSZ  497G CHARTER FIBERLINK NH-CCO-LLC - NH 122      
603-400 0 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2011-10-18   
603-400 1 Hollis NH MNCHNHCOXSZ  497G CHARTER FIBERLINK NH-CCO-LLC - NH 122   2011-10-15   
603-400 2 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2013-11-04   
603-400 3 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2017-04-29   
603-400 4 Hollis NH MNCHNHNI9MD  5562 METROPCS, INC. 122   2017-02-27   
603-400 5 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2016-10-01   
603-400 6 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2016-07-09   
603-400 7 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2016-03-26   
603-400 8 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2015-09-22   
603-400 9 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2014-11-11   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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