Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: BLTMMDCHW29

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
443-921 9 Towson MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-924 2 Annapolis MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238   2009-10-06   
443-954 A Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238      
443-954 0 Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238   2005-08-27   
443-954 1 Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238   2005-08-27   
443-954 2 Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238   2005-08-27   
443-954 3 Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238   2005-08-27   
443-954 4 Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238   2005-08-27   
443-954 5 Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238   2005-08-27   
443-954 6 Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238   2005-08-27   
443-954 7 Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238   2005-08-27   
443-954 8 Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238   2005-08-27   
443-954 9 Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238   2005-08-27   
667-218 6 Baltimore MD 2589 US LEC OF MARYLAND, INC. 238   2016-05-07   
667-219 6 Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238   2015-06-30   
667-219 7 Baltimore MD 4716 PAETEC COMMUNICATIONS, INC. - MD 238   2015-06-30   

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Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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