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: FRDRMDFRXTX

1 2 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-284 2 Frostburg MD 318J COMCAST IP PHONE, LLC 240   2010-03-05   
240-288 A Thurmont MD 318J COMCAST IP PHONE, LLC 240      
240-288 7 Thurmont MD 318J COMCAST IP PHONE, LLC 240   2015-04-03   
240-288 8 Thurmont MD 318J COMCAST IP PHONE, LLC 240   2007-04-07   
240-341 2 Buckeystown MD 318J COMCAST IP PHONE, LLC 240   2013-11-08   
240-341 4 Buckeystown MD 318J COMCAST IP PHONE, LLC 240   2014-11-25   
240-341 7 Buckeystown MD 318J COMCAST IP PHONE, LLC 240   2015-07-21   
240-343 8 Hancock MD 318J COMCAST IP PHONE, LLC 240   2016-06-20   
240-382 1 Hagerstown MD 318J COMCAST IP PHONE, LLC 240   2009-12-31   
240-439 4 Frederick MD 318J COMCAST IP PHONE, LLC 240   2010-07-03   
240-442 5 Oakland MD 318J COMCAST IP PHONE, LLC 240   2008-01-30   
240-457 4 Frederick MD 318J COMCAST IP PHONE, LLC 240   2011-06-20   
240-488 4 Oakland MD 318J COMCAST IP PHONE, LLC 240   2015-06-10   
240-490 5 Middletown MD 318J COMCAST IP PHONE, LLC 240   2012-05-05   
240-490 7 Middletown MD 318J COMCAST IP PHONE, LLC 240   2007-04-07   
240-490 8 Middletown MD 318J COMCAST IP PHONE, LLC 240   2014-09-21   
240-575 9 Frederick MD 318J COMCAST IP PHONE, LLC 240   2008-03-19   
240-578 4 Frederick MD 318J COMCAST IP PHONE, LLC 240   2014-01-14   
240-594 3 Bittinger MD 318J COMCAST IP PHONE, LLC 240   2020-07-17   
240-629 8 Frederick MD 318J COMCAST IP PHONE, LLC 240   2008-08-20   
240-651 0 Frederick MD 318J COMCAST IP PHONE, LLC 240   2014-05-10   
240-651 1 Frederick MD 318J COMCAST IP PHONE, LLC 240   2015-12-16   
240-651 3 Frederick MD 318J COMCAST IP PHONE, LLC 240   2014-08-30   
240-651 5 Frederick MD 318J COMCAST IP PHONE, LLC 240   2012-06-30   
240-656 1 Frederick MD 318J COMCAST IP PHONE, LLC 240   2021-03-14   
240-739 3 Frederick MD 318J COMCAST IP PHONE, LLC 240   2021-03-14   
240-769 2 Keedysville MD 318J COMCAST IP PHONE, LLC 240   2023-03-18   
240-815 5 Frederick MD 318J COMCAST IP PHONE, LLC 240   2016-05-05   
240-815 6 Frederick MD 318J COMCAST IP PHONE, LLC 240   2016-08-26   
240-815 7 Frederick MD 318J COMCAST IP PHONE, LLC 240   2017-05-23   
240-819 8 Williamsport MD 318J COMCAST IP PHONE, LLC 240   2023-02-27   
240-822 3 New Market MD 318J COMCAST IP PHONE, LLC 240   2021-10-03   
240-822 5 New Market MD 318J COMCAST IP PHONE, LLC 240   2021-10-03   
240-831 4 Frederick MD 318J COMCAST IP PHONE, LLC 240   2018-06-16   
240-870 2 Middletown MD 318J COMCAST IP PHONE, LLC 240   2017-05-23   
240-877 7 Frederick MD 318J COMCAST IP PHONE, LLC 240   2016-11-06   
240-913 4 Damascus (Hagerstown LATA) MD 318J COMCAST IP PHONE, LLC 240   2018-02-02   
240-915 2 New Market MD 318J COMCAST IP PHONE, LLC 240   2017-03-10   
240-915 5 New Market MD 318J COMCAST IP PHONE, LLC 240   2021-03-08   
240-943 A Frostburg MD 318J COMCAST IP PHONE, LLC 240      
240-943 2 Frostburg MD 318J COMCAST IP PHONE, LLC 240   2022-09-26   
301-228 9 Frederick MD 318J COMCAST IP PHONE, LLC 240   2018-01-01   
301-241 2 Highfield MD 318J COMCAST IP PHONE, LLC 240   2010-03-02   
301-304 A Walkersville MD 318J COMCAST IP PHONE, LLC 240      
301-304 0 Walkersville MD 318J COMCAST IP PHONE, LLC 240   2007-04-20   
301-304 2 Walkersville MD 318J COMCAST IP PHONE, LLC 240   2011-03-24   
301-304 5 Walkersville MD 318J COMCAST IP PHONE, LLC 240   2013-02-08   
301-304 9 Walkersville MD 318J COMCAST IP PHONE, LLC 240   2015-02-27   
301-359 5 Westernport MD 318J COMCAST IP PHONE, LLC 240   2010-03-05   
301-360 5 Frederick MD 318J COMCAST IP PHONE, LLC 240   2016-02-09   
301-363 3 Damascus (Hagerstown LATA) MD 318J COMCAST IP PHONE, LLC 240   2012-11-25   
301-363 5 Damascus (Hagerstown LATA) MD 318J COMCAST IP PHONE, LLC 240   2009-03-06   
301-363 8 Damascus (Hagerstown LATA) MD 318J COMCAST IP PHONE, LLC 240   2007-04-07   
301-378 A Frederick MD 318J COMCAST IP PHONE, LLC 240      
301-378 0 Frederick MD 318J COMCAST IP PHONE, LLC 240   2007-04-06   
301-378 2 Frederick MD 318J COMCAST IP PHONE, LLC 240   2009-08-13   
301-378 8 Frederick MD 318J COMCAST IP PHONE, LLC 240   2012-11-03   
301-378 9 Frederick MD 318J COMCAST IP PHONE, LLC 240   2013-05-12   
301-447 4 Emmitsburg MD 318J COMCAST IP PHONE, LLC 240   2007-04-07   
301-463 8 Lonaconing MD 318J COMCAST IP PHONE, LLC 240   2014-03-24   
301-508 7 Myersville MD 318J COMCAST IP PHONE, LLC 240   2007-04-07   
301-508 8 Myersville MD 318J COMCAST IP PHONE, LLC 240   2019-05-10   
301-682 2 Frederick MD 318J COMCAST IP PHONE, LLC 240   2015-02-27   
301-703 1 Mount Airy MD 318J COMCAST IP PHONE, LLC 240   2015-09-17   
301-703 5 Mount Airy MD 318J COMCAST IP PHONE, LLC 240   2012-05-26   
301-703 8 Mount Airy MD 318J COMCAST IP PHONE, LLC 240   2007-04-07   
301-732 4 Frederick MD 318J COMCAST IP PHONE, LLC 240   2015-08-11   
301-732 5 Frederick MD 318J COMCAST IP PHONE, LLC 240   2011-12-04   
301-732 6 Frederick MD 318J COMCAST IP PHONE, LLC 240   2013-09-18   
301-750 5 Friendsville MD 318J COMCAST IP PHONE, LLC 240   2007-08-31   
301-786 8 McCoole MD 318J COMCAST IP PHONE, LLC 240   2014-03-24   
301-798 2 Damascus (Hagerstown LATA) MD 318J COMCAST IP PHONE, LLC 240   2010-06-26   
301-798 3 Damascus (Hagerstown LATA) MD 318J COMCAST IP PHONE, LLC 240   2016-02-17   
301-798 8 Damascus (Hagerstown LATA) MD 318J COMCAST IP PHONE, LLC 240   2014-06-06   
301-799 1 Keedysville MD 318J COMCAST IP PHONE, LLC 240   2011-01-22   
301-810 2 Buckeystown MD 318J COMCAST IP PHONE, LLC 240   2016-12-09   
301-810 5 Buckeystown MD 318J COMCAST IP PHONE, LLC 240   2007-04-07   
301-824 0 Smithsburg MD 318J COMCAST IP PHONE, LLC 240   2007-04-07   
301-835 7 Frederick MD 318J COMCAST IP PHONE, LLC 240   2019-03-20   
301-842 5 Clear Spring MD 318J COMCAST IP PHONE, LLC 240   2009-12-31   
301-882 4 New Market MD 318J COMCAST IP PHONE, LLC 240   2013-08-16   
301-882 7 New Market MD 318J COMCAST IP PHONE, LLC 240   2007-04-07   
301-895 8 Grantsville MD 318J COMCAST IP PHONE, LLC 240   2010-03-05   
301-898 2 Frederick MD 318J COMCAST IP PHONE, LLC 240   2008-08-20   
301-969 A Brunswick MD 318J COMCAST IP PHONE, LLC 240      
301-969 0 Brunswick MD 318J COMCAST IP PHONE, LLC 240   2007-04-20   
301-969 6 Brunswick MD 318J COMCAST IP PHONE, LLC 240   2014-08-20   
304-350 1 Martinsburg WV 318J COMCAST IP PHONE, LLC 240   2013-04-26   
304-350 8 Martinsburg WV 318J COMCAST IP PHONE, LLC 240   2013-12-28   
304-355 3 Piedmont (Mineral) WV 318J COMCAST IP PHONE, LLC 240   2014-03-23   
304-378 A Martinsburg WV 318J COMCAST IP PHONE, LLC 240      
304-500 2 Berkeley Springs WV 318J COMCAST IP PHONE, LLC 240   2013-04-26   
304-535 8 Harpers Ferry WV 318J COMCAST IP PHONE, LLC 240   2013-04-26   
304-790 7 Keyser WV 318J COMCAST IP PHONE, LLC 240   2014-03-23   
304-821 4 Inwood WV 318J COMCAST IP PHONE, LLC 240   2013-04-26   
304-821 5 Inwood WV 318J COMCAST IP PHONE, LLC 240   2015-12-21   
304-821 8 Inwood WV 318J COMCAST IP PHONE, LLC 240   2014-10-13   
304-870 2 Shepherdstown WV 318J COMCAST IP PHONE, LLC 240   2016-12-11   
304-870 4 Shepherdstown WV 318J COMCAST IP PHONE, LLC 240   2013-04-26   
304-885 8 Charles Town WV 318J COMCAST IP PHONE, LLC 240   2014-11-20   

1 2 >>

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.