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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
443-978 3 Salisbury MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2017-08-20   
443-988 A Centreville MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
443-988 0 Centreville MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2006-08-07   
667-279 4 Bishopville MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-11-18   
667-288 A Berlin MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
667-288 2 Berlin MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2020-10-29   
667-293 1 Sharptown MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-11-18   
667-302 8 Cecilton MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-11-18   
667-317 A Princess Anne MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
667-317 4 Princess Anne MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2021-06-29   
667-323 A Queenstown MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
667-323 4 Queenstown MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2021-07-27   
667-341 1 Delmar MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-11-18   
667-342 7 Preston MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-11-18   
667-347 9 Federalsburg MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-12-19   
667-348 4 Ridgely MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-09-15   
667-418 7 Greensboro MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-12-12   
667-661 9 Snow Hill MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-04-15   
667-687 4 Warwick MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-11-18   
667-767 9 St Michaels MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-11-18   
667-868 2 Crisfield MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2019-12-13   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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