Local Calling Guide

Area code/prefix search

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

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-280 A Laurel MD ALXNVAGBPS1  107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236      
240-280 0 Laurel MD   4773 XO MARYLAND, LLC 236   2004-09-15   
240-280 1 Laurel MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236   2006-08-01   
240-280 2 Laurel MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236   2006-08-01   
240-280 3 Laurel MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2008-10-01   
240-280 4 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-05-19   
240-280 5 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-06-09   
240-280 6 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-07-30   
240-280 7 Laurel MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236   2007-10-07   
240-280 8 Laurel MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236   2002-01-31   
240-280 9 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-12-24   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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