Local Calling Guide

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OCN: 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
240-206 7 Washington Zone 14 MD   236   2008-10-01   
240-267 4 Hagerstown MD   240   2018-05-11   
240-280 3 Laurel MD   236   2008-10-01   
240-307 3 Emmitsburg MD   240   2008-07-01   
240-341 A Buckeystown MD FRDRMDFRX7X  240   2009-04-18   
240-341 3 Buckeystown MD   240   2015-01-26   
240-341 9 Buckeystown MD   240   2009-04-18   
240-342 5 Ashton MD   236   2008-10-01   
240-345 4 Ashton (Baltimore LATA) MD   238   2007-12-01   
240-366 4 Williamsport MD   240   2014-07-15   
240-394 3 Mount Airy MD   240   2010-02-01   
240-397 7 Frederick MD   240   2009-11-30   
240-402 A Washington Zone 13 MD RSTNVABHDS3  236   2010-11-13   
240-402 0 Washington Zone 13 MD   236   2010-11-13   
240-402 1 Washington Zone 13 MD   236   2010-11-13   
240-402 2 Washington Zone 13 MD   236   2010-11-13   
240-402 3 Washington Zone 13 MD   236   2010-11-13   
240-402 4 Washington Zone 13 MD   236   2010-11-13   
240-402 5 Washington Zone 13 MD   236   2010-11-13   
240-402 6 Washington Zone 13 MD   236   2010-11-13   
240-402 7 Washington Zone 13 MD   236   2010-11-13   
240-402 8 Washington Zone 13 MD   236   2010-11-13   
240-402 9 Washington Zone 13 MD   236   2010-11-13   
240-448 2 Waldorf MD   236   2014-11-17   
240-451 2 Thurmont MD   240   2018-07-12   
240-490 3 Middletown MD   240   2010-02-01   
240-500 3 Hagerstown MD   240   2011-09-28   
240-509 3 Washington Zone 14 (Baltimore LATA) MD   238   2008-10-01   
240-512 2 Washington Zone 13 (Baltimore LATA) MD   238   2007-12-03   
240-512 3 Washington Zone 13 (Baltimore LATA) MD   238   2008-10-01   
240-513 3 Hagerstown MD   240   2013-12-06   
240-541 4 Washington Zone 2 MD   236   2012-10-16   
240-565 6 Laurel (Baltimore LATA) MD   238   2007-03-01   
240-588 A Grantsville MD   240   2018-05-01   
240-588 3 Grantsville MD   240   2018-05-01   
240-609 3 Cumberland MD   240   2015-07-21   
240-616 A Washington Zone 13 MD RSTNVABHDS3  236      
240-619 A Washington Zone 5 MD RSTNVABHDS3  236      
240-620 A Washington Zone 10 MD RSTNVABHDS3  236      
240-620 0 Washington Zone 10 MD   236      
240-621 A Washington Zone 11 MD RSTNVABHDS3  236      
240-651 7 Frederick MD   240   2017-04-06   
240-657 A Frostburg MD   240      
240-657 3 Frostburg MD   240   2016-02-20   
240-734 4 Smithsburg MD   240   2017-09-11   
240-772 3 Frederick MD   240   2012-08-29   
240-816 2 Keedysville MD   240   2016-11-14   
240-865 8 Washington Zone 14 (Baltimore LATA) MD   238   2007-12-03   
240-913 2 Damascus (Hagerstown LATA) MD   240   2019-05-30   
240-998 5 Hancock MD   240   2019-01-07   

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

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