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.

OCN: 318J COMCAST IP PHONE, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
217-605 A Lincoln IL   366      
240-284 2 Frostburg MD   240   2010-03-05   
240-288 A Thurmont MD   240      
240-288 7 Thurmont MD   240   2015-04-03   
240-288 8 Thurmont MD   240   2007-04-07   
240-341 2 Buckeystown MD   240   2013-11-08   
240-341 4 Buckeystown MD   240   2014-11-25   
240-341 7 Buckeystown MD   240   2015-07-21   
240-343 8 Hancock MD   240   2016-06-20   
240-382 1 Hagerstown MD   240   2009-12-31   
240-439 4 Frederick MD   240   2010-07-03   
240-442 5 Oakland MD   240   2008-01-30   
240-457 4 Frederick MD   240   2011-06-20   
240-488 4 Oakland MD   240   2015-06-10   
240-490 5 Middletown MD   240   2012-05-05   
240-490 7 Middletown MD   240   2007-04-07   
240-490 8 Middletown MD   240   2014-09-21   
240-575 9 Frederick MD   240   2008-03-19   
240-578 4 Frederick MD   240   2014-01-14   
240-629 8 Frederick MD   240   2008-08-20   
240-651 0 Frederick MD   240   2014-05-10   
240-651 1 Frederick MD   240   2015-12-16   
240-651 3 Frederick MD   240   2014-08-30   
240-651 5 Frederick MD   240   2012-06-30   
240-815 5 Frederick MD   240   2016-05-05   
240-815 6 Frederick MD   240   2016-08-26   
240-815 7 Frederick MD   240   2017-05-23   
240-831 4 Frederick MD   240   2018-06-16   
240-870 2 Middletown MD   240   2017-05-23   
240-877 7 Frederick MD   240   2016-11-06   
240-913 4 Damascus (Hagerstown LATA) MD   240   2018-02-02   
240-915 2 New Market MD   240   2017-03-10   
251-217 2 Mobile AL   480   2016-08-25   
251-217 7 Mobile AL   480   2016-04-20   
251-219 6 Mobile AL   480   2012-01-28   
251-219 7 Mobile AL   480   2010-07-04   
251-287 0 Mobile AL   480   2010-09-15   
251-287 1 Mobile AL   480   2010-09-15   
251-287 2 Mobile AL   480   2010-09-15   
251-287 6 Mobile AL   480   2011-02-19   
251-287 7 Mobile AL   480   2011-02-19   
251-300 8 Mobile AL   480   2008-04-03   
251-301 7 Mobile AL   480   2013-12-27   
251-305 A Mobile AL   480   2019-07-19   
251-305 1 Mobile AL   480   2019-07-19   
251-308 2 Mobile AL   480   2014-05-30   
251-308 3 Mobile AL   480   2014-05-30   
251-308 8 Mobile AL   480   2014-06-01   
251-338 9 Mobile AL   480   2012-06-07   
251-341 7 Mobile AL   480   2011-09-29   

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Last updated: Sun, 31 May 2020 11:59:01 UTC

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