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: BLTMMDCHXFX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
667-308 2 Towson MD 318J COMCAST IP PHONE, LLC 238   2013-07-24   
667-309 3 Baltimore MD 318J COMCAST IP PHONE, LLC 238   2014-05-30   
667-309 6 Baltimore MD 318J COMCAST IP PHONE, LLC 238   2014-03-04   
667-309 7 Baltimore MD 318J COMCAST IP PHONE, LLC 238   2014-03-04   
667-312 2 Baltimore MD 318J COMCAST IP PHONE, LLC 238   2016-01-05   
667-314 3 Westminster MD 318J COMCAST IP PHONE, LLC 238   2017-10-30   
667-340 6 Churchville MD 318J COMCAST IP PHONE, LLC 238   2023-01-18   
667-363 0 Sherwood Forest MD 318J COMCAST IP PHONE, LLC 238   2023-07-23   
667-367 2 Westminster MD 318J COMCAST IP PHONE, LLC 238   2016-06-15   
667-394 2 New Windsor MD 318J COMCAST IP PHONE, LLC 238   2023-03-13   
667-577 2 Elkton MD 318J COMCAST IP PHONE, LLC 238   2021-10-07   
667-577 3 Elkton MD 318J COMCAST IP PHONE, LLC 238   2021-10-07   
667-653 5 Brooklyn Park-Linthicum MD 318J COMCAST IP PHONE, LLC 238   2019-03-20   
667-737 8 Perryville MD 318J COMCAST IP PHONE, LLC 238   2022-05-07   
667-777 4 Severna Park MD 318J COMCAST IP PHONE, LLC 238   2016-11-10   
667-802 5 Catonsville MD 318J COMCAST IP PHONE, LLC 238   2016-12-15   
667-930 3 Baltimore MD 318J COMCAST IP PHONE, LLC 238   2015-08-11   

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

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