Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

NXX: 410

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-410 A Severn MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-410 0 Severn MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-05-20   
667-410 1 Severn MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-410 2 Severn MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-410 3 Severn MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-410 4 Severn MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-410 5 Severn MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-410 6 Severn MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-410 7 Severn MD   876D ONVOY, LLC - MD 238   2023-08-10   
667-410 8 Severn MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-09-30   
667-410 9 Severn MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-09-30   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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