Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
227-203 A Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
227-203 1 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2023-10-06   
227-203 2 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2023-10-06   
227-203 3 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2023-10-06   
240-267 4 Hagerstown MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2018-05-11   
240-307 3 Emmitsburg MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2008-07-01   
240-341 A Buckeystown MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
240-341 3 Buckeystown MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2015-01-26   
240-341 9 Buckeystown MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2009-04-18   
240-366 4 Williamsport MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2014-07-15   
240-394 3 Mount Airy MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2010-02-01   
240-397 7 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2009-11-30   
240-451 2 Thurmont MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2018-07-12   
240-490 3 Middletown MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2010-02-01   
240-500 3 Hagerstown MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2011-09-28   
240-513 3 Hagerstown MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2013-12-06   
240-586 7 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2007-01-21   
240-586 8 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2007-01-21   
240-591 5 Hagerstown MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2020-10-05   
240-591 6 Hagerstown MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2020-10-05   
240-591 7 Hagerstown MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2020-10-05   
240-609 3 Cumberland MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2015-07-21   
240-651 7 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2017-04-06   
240-657 A Frostburg MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
240-657 3 Frostburg MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2016-02-20   
240-710 A Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
240-710 0 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2020-02-13   
240-710 1 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2020-02-13   
240-710 2 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2020-02-13   
240-710 3 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2020-02-13   
240-710 4 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2020-02-13   
240-710 5 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2020-02-13   
240-710 6 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2020-02-13   
240-710 7 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2020-02-13   
240-710 8 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2020-02-13   
240-710 9 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2020-02-13   
240-734 4 Smithsburg MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2017-09-11   
240-772 3 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2012-08-29   
240-792 5 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2021-10-21   
240-816 2 Keedysville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2016-11-14   
240-913 2 Damascus (Hagerstown LATA) MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2019-05-30   
240-998 5 Hancock MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2019-01-07   
301-302 8 Hagerstown MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2006-08-01   
301-304 3 Walkersville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2009-09-02   
301-501 5 Oakland MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2010-01-04   
301-607 2 Damascus (Hagerstown LATA) MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
301-607 3 Damascus (Hagerstown LATA) MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
301-687 6 Frostburg MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
301-712 A Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
301-712 9 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2004-09-13   
301-723 7 Cumberland MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2006-07-01   
301-726 A Kitzmiller MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
301-726 3 Kitzmiller MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2023-03-31   
301-732 8 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2015-07-21   
301-810 4 Buckeystown MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2004-09-13   
301-835 4 Frederick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2019-10-16   
301-969 3 Brunswick MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2010-01-04   
304-209 7 Keyser WV 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 240   2012-03-16   
304-240 3 Falling Waters WV 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 240   2012-03-16   
304-500 A Berkeley Springs WV 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 240      
304-500 9 Berkeley Springs WV 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 240   2009-10-23   
304-693 3 Gormania WV 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 240   2012-05-18   
304-754 2 Hedgesville WV 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 240   2010-01-04   
304-821 3 Inwood WV 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 240   2010-01-28   
304-901 3 Martinsburg WV 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 240   2011-12-16   
304-930 A Charles Town WV 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 240      
304-930 9 Charles Town WV 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 240   2006-03-31   
681-247 3 Martinsburg WV 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 240   2017-03-30   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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