Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: BLTMMDCHW29

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-293 A Annapolis MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-270 A Glen Burnie MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-283 A Columbia MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-321 A Annapolis MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-426 A Randallstown MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-451 A Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-459 A Elkridge MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-522 A Reisterstown MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-530 A Dundalk MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-541 A Cockeysville MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-603 A Annapolis MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-725 A Parkville MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-729 A Woodlawn MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-730 A Essex MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-737 A Waterloo MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-738 A Pikesville MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-820 A Elkridge MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-867 A Glen Burnie MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-921 A Towson MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-954 A Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      

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

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