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: 277

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-277 A Sherwood Forest MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
667-277 0 Sherwood Forest MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-07-22   
667-277 1 Sherwood Forest MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-07-22   
667-277 2 Sherwood Forest MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
667-277 3 Sherwood Forest MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
667-277 4 Sherwood Forest MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-07-22   
667-277 5 Sherwood Forest MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
667-277 6 Sherwood Forest MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
667-277 7 Sherwood Forest MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
667-277 8 Sherwood Forest MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
667-277 9 Sherwood Forest MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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