Local Calling Guide

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NPA: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

NXX: 639

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-639 A Laurel MD CHCHMDBEPS0  2593 CORE COMMUNICATIONS, INC.- MD 236      
240-639 0 Laurel MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-07-23   
240-639 1 Laurel MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-07-23   
240-639 2 Laurel MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 236   2019-11-04   
240-639 3 Laurel MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2019-10-22   
240-639 4 Laurel MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2019-10-22   
240-639 5 Laurel MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2019-09-25   
240-639 6 Laurel MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2019-09-25   
240-639 7 Laurel MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-07-23   
240-639 8 Laurel MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2020-08-10   
240-639 9 Laurel MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2019-09-08   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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