Local Calling Guide

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

NXX: 633

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-633 A Hughesville MD VINNVACB2MD  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 236      
240-633 0 Hughesville MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-02-06   
240-633 1 Hughesville MD   515J IP HORIZON LLC 236   2016-05-31   
240-633 2 Hughesville MD WASHDC127MD  073H TELNYX LLC 236   2017-04-27   
240-633 3 Hughesville MD VINNVACB2MD  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 236   2015-07-13   
240-633 4 Hughesville MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-03-29   
240-633 5 Hughesville MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-30   
240-633 6 Hughesville MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-07-14   
240-633 7 Hughesville MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-03-14   
240-633 8 Hughesville MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-03-14   
240-633 9 Hughesville MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-09-15   

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

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