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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-300 A Columbia MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-07-23   
667-300 0 Columbia MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-07-23   
667-300 1 Columbia MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-07-23   
667-300 2 Columbia MD   197D VONAGE NETWORK INC. 238   2018-12-06   
667-300 3 Columbia MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-07-23   
667-300 4 Columbia MD   197D VONAGE NETWORK INC. 238   2018-12-06   
667-300 5 Columbia MD   197D VONAGE NETWORK INC. 238   2018-12-06   
667-300 6 Columbia MD   197D VONAGE NETWORK INC. 238   2018-12-06   
667-300 7 Columbia MD   197D VONAGE NETWORK INC. 238   2018-12-06   
667-300 8 Columbia MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2018-08-04   
667-300 9 Columbia MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2018-08-04   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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