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.

Switch: BLTQMD019MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-214 7 Rising Sun MD 490J DISH WIRELESS, LLC 238   2023-03-01   
443-726 3 Baltimore MD 490J DISH WIRELESS, LLC 238   2024-05-13   
443-740 7 Baltimore MD 490J DISH WIRELESS, LLC 238   2024-07-20   
667-385 A Solomons MD 490J DISH WIRELESS, LLC 238      
667-385 8 Solomons MD 490J DISH WIRELESS, LLC 238   2022-06-06   
667-417 3 Glen Burnie MD 490J DISH WIRELESS, LLC 238   2025-01-19   
667-417 4 Glen Burnie MD 490J DISH WIRELESS, LLC 238   2025-03-24   
667-417 5 Glen Burnie MD 490J DISH WIRELESS, LLC 238   2025-05-26   
667-417 8 Glen Burnie MD 490J DISH WIRELESS, LLC 238   2023-03-13   
667-417 9 Glen Burnie MD 490J DISH WIRELESS, LLC 238   2023-07-01   
667-421 0 Columbia MD 490J DISH WIRELESS, LLC 238   2024-01-21   
667-421 1 Columbia MD 490J DISH WIRELESS, LLC 238   2024-04-26   
667-427 0 West River MD 490J DISH WIRELESS, LLC 238   2023-06-30   
667-447 0 Columbia MD 490J DISH WIRELESS, LLC 238   2024-09-22   
667-447 1 Columbia MD 490J DISH WIRELESS, LLC 238   2024-11-22   
667-447 8 Columbia MD 490J DISH WIRELESS, LLC 238   2025-01-22   
667-462 A Elkton MD 490J DISH WIRELESS, LLC 238   2024-02-04   
667-462 0 Elkton MD 490J DISH WIRELESS, LLC 238   2024-02-04   
667-466 1 Havre de Grace MD 490J DISH WIRELESS, LLC 238   2023-03-12   
667-484 A Westminster MD 490J DISH WIRELESS, LLC 238   2024-07-12   
667-484 0 Westminster MD 490J DISH WIRELESS, LLC 238   2024-07-12   
667-484 1 Westminster MD 490J DISH WIRELESS, LLC 238   2024-07-12   
667-484 2 Westminster MD 490J DISH WIRELESS, LLC 238   2024-09-15   
667-484 3 Westminster MD 490J DISH WIRELESS, LLC 238   2024-11-01   
667-487 0 Baltimore MD 490J DISH WIRELESS, LLC 238   2024-10-16   
667-487 2 Baltimore MD 490J DISH WIRELESS, LLC 238   2024-12-16   
667-576 1 Jarrettsville MD 490J DISH WIRELESS, LLC 238   2022-09-08   
667-788 4 Westminster MD 490J DISH WIRELESS, LLC 238   2022-12-20   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.