Local Calling Guide

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NPA: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

NXX: 644

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-644 A Severna Park MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-644 0 Severna Park MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-09-29   
667-644 1 Severna Park MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-06-10   
667-644 2 Severna Park MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-12   
667-644 3 Severna Park MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-12   
667-644 4 Severna Park MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-01-28   
667-644 5 Severna Park MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-01-28   
667-644 6 Severna Park MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-06-27   
667-644 7 Severna Park MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-25   
667-644 8 Severna Park MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-02-09   
667-644 9 Severna Park MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-08-10   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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