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
301-878 A Baltimore MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-246 A Baltimore MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-314 A Arbutus MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-317 A Armiger-Gibson Island MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-401 A Brooklyn Park-Linthicum MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-402 A Catonsville MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-403 A Cockeysville MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-406 A Essex MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-412 A Glen Burnie MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-413 A Pikesville MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-454 A Baltimore MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-487 A Glen Burnie MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-567 A Elkridge MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-616 A Towson MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-622 A Baltimore MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-630 A Chase MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-645 A Woodlawn MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-657 A Parkville MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-670 A Edgewood MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-696 A Ellicott City MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-697 A Millersville MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-698 A Fork MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-701 A Randallstown MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-702 A Reisterstown MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-704 A Towson MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-709 A Sparrows Point MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-753 A Pikesville MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-774 A Crofton MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-777 A Severna Park MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-786 A Woodlawn MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-801 A Baltimore MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-842 A Towson MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-846 A Severn MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-864 A Baltimore MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-874 A Odenton MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-878 A Baltimore MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-881 A Sherwood Forest MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-891 A Cockeysville MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-904 A Waterloo MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-907 A Woodlawn MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-910 A Columbia MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-919 A Annapolis MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-949 A Baltimore MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-970 A Sykesville MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
443-224 A Baltimore MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
443-261 A Severna Park MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
443-289 A Westminster MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
443-475 A Baltimore MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
443-741 A Columbia MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
443-931 A Baltimore MD 7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      

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Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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