Local Calling Guide

Area code/prefix search

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-345 4 Ashton (Baltimore LATA) MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2007-12-01   
240-509 3 Washington Zone 14 (Baltimore LATA) MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-10-01   
240-512 2 Washington Zone 13 (Baltimore LATA) MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2007-12-03   
240-512 3 Washington Zone 13 (Baltimore LATA) MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-10-01   
240-565 6 Laurel (Baltimore LATA) MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2007-03-01   
240-865 8 Washington Zone 14 (Baltimore LATA) MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2007-12-03   
301-327 3 Washington Zone 15 (Baltimore LATA) MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2007-12-01   
301-878 A Baltimore MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 A Baltimore MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 0 Baltimore MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 1 Baltimore MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 2 Baltimore MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 3 Baltimore MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 5 Baltimore MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 6 Baltimore MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 7 Baltimore MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 8 Baltimore MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 9 Baltimore MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-314 A Arbutus MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-314 1 Arbutus MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-314 2 Arbutus MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-314 9 Arbutus MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-317 A Armiger-Gibson Island MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-317 4 Armiger-Gibson Island MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-317 9 Armiger-Gibson Island MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-401 A Brooklyn Park-Linthicum MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-401 9 Brooklyn Park-Linthicum MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-402 A Catonsville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-402 1 Catonsville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-402 2 Catonsville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-402 6 Catonsville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-402 7 Catonsville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-402 8 Catonsville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-402 9 Catonsville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-403 A Cockeysville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-403 1 Cockeysville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-403 2 Cockeysville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-403 9 Cockeysville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-406 A Essex MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-406 9 Essex MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-412 A Glen Burnie MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-412 1 Glen Burnie MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-412 2 Glen Burnie MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-412 7 Glen Burnie MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-412 8 Glen Burnie MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-412 9 Glen Burnie MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-413 A Pikesville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-413 1 Pikesville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-413 2 Pikesville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-413 4 Pikesville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-413 5 Pikesville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-413 9 Pikesville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-441 3 Elkton MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2007-04-16   
410-449 3 Solomons MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2011-10-03   
410-454 A Baltimore MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-487 A Glen Burnie MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-487 0 Glen Burnie MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-487 7 Glen Burnie MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-487 8 Glen Burnie MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-487 9 Glen Burnie MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-567 A Elkridge MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-567 1 Elkridge MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-567 2 Elkridge MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-567 7 Elkridge MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2006-09-29   
410-567 8 Elkridge MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-567 9 Elkridge MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-616 A Towson MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-616 0 Towson MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-616 1 Towson MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-616 2 Towson MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-616 3 Towson MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-616 4 Towson MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-616 5 Towson MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-616 6 Towson MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-616 7 Towson MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-622 A Baltimore MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-622 3 Baltimore MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2011-09-26   
410-630 A Chase MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-630 9 Chase MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-645 A Woodlawn MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-645 1 Woodlawn MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-645 9 Woodlawn MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-650 2 Dundalk MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-656 3 North East MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2011-02-01   
410-657 A Parkville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-657 1 Parkville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2018-05-10   
410-657 3 Parkville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-657 9 Parkville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-670 A Edgewood MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-670 9 Edgewood MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-696 A Ellicott City MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-696 1 Ellicott City MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-696 3 Ellicott City MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2005-07-03   
410-696 9 Ellicott City MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-697 A Millersville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-697 9 Millersville MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-698 A Fork MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-698 9 Fork MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-701 A Randallstown MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-701 9 Randallstown MD 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      

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Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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