Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

NXX: 437

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-437 A Ashton MD WASHDCCZDS0  4773 XO MARYLAND, LLC 236      
240-437 0 Ashton MD WASHDCCZDS0  4773 XO MARYLAND, LLC 236      
240-437 1 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-03-23   
240-437 2 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2010-12-02   
240-437 3 Ashton MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-07-02   
240-437 4 Ashton MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-07-02   
240-437 5 Ashton MD WASHDCCZDS0  4773 XO MARYLAND, LLC 236      
240-437 6 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-07-15   
240-437 7 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-07-15   
240-437 8 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-07-15   
240-437 9 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-07-04   

Last updated: Sun, 28 Feb 2021 19:06:05 UTC

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