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: 451

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-451 A Fork MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-451 0 Fork MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-04-19   
667-451 7 Fork MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2024-06-20   
667-451 8 Fork MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-01-12   
667-451 9 Fork MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-11-13   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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