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: 527

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-527 A Glen Burnie MD   490J DISH WIRELESS, LLC 238   2025-11-01   
667-527 0 Glen Burnie MD   490J DISH WIRELESS, LLC 238   2025-11-01   
667-527 1 Glen Burnie MD   490J DISH WIRELESS, LLC 238   2025-12-18   
667-527 2 Glen Burnie MD   490J DISH WIRELESS, LLC 238   2026-02-12   
667-527 3 Glen Burnie MD   490J DISH WIRELESS, LLC 238   2026-01-23   
667-527 4 Glen Burnie MD   490J DISH WIRELESS, LLC 238   2026-01-23   
667-527 5 Glen Burnie MD   490J DISH WIRELESS, LLC 238   2026-02-10   
667-527 6 Glen Burnie MD   490J DISH WIRELESS, LLC 238   2026-02-10   
667-527 7 Glen Burnie MD   490J DISH WIRELESS, LLC 238   2026-03-10   
667-527 8 Glen Burnie MD   876D ONVOY, LLC - MD 238   2026-01-04   
667-527 9 Glen Burnie MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2026-02-03   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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