Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 506

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-506 A Manchester NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-506 0 Manchester NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2019-08-07   
603-506 1 Manchester NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2020-05-11   
603-506 2 Manchester NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2020-04-12   
603-506 3 Manchester NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122   2019-09-16   
603-506 4 Manchester NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2019-09-20   
603-506 5 Manchester NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2019-09-20   
603-506 6 Manchester NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2019-08-06   
603-506 7 Manchester NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2019-03-20   
603-506 8 Manchester NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2018-12-13   
603-506 9 Manchester NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2018-12-13   

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

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