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: HSTNTXMOX7X

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-570 4 Humble TX 318J COMCAST IP PHONE LLC 560   2004-08-25   
281-570 6 Humble TX 318J COMCAST IP PHONE LLC 560   2006-07-03   
281-612 A Friendswood TX 318J COMCAST IP PHONE LLC 560   2021-01-12   
281-612 2 Friendswood TX 318J COMCAST IP PHONE LLC 560   2015-09-25   
281-617 7 Houston Suburban TX 318J COMCAST IP PHONE LLC 560   2008-03-24   
281-623 5 Humble TX 318J COMCAST IP PHONE LLC 560   2018-05-30   
281-624 A Bammel TX 318J COMCAST IP PHONE LLC 560   2021-01-12   
281-624 3 Bammel TX 318J COMCAST IP PHONE LLC 560   2012-10-05   
281-628 7 Baytown TX 318J COMCAST IP PHONE LLC 560   2012-12-26   
281-645 4 Westfield TX 318J COMCAST IP PHONE LLC 560   2005-06-01   
281-645 8 Westfield TX 318J COMCAST IP PHONE LLC 560   2007-05-29   
281-651 2 Spring EMS TX 318J COMCAST IP PHONE LLC 560   2005-09-09   
281-651 4 Spring EMS TX 318J COMCAST IP PHONE LLC 560   2007-05-29   
281-651 5 Spring EMS TX 318J COMCAST IP PHONE LLC 560   2006-09-11   
281-656 8 Langham Creek TX 318J COMCAST IP PHONE LLC 560   2008-04-02   
281-665 3 Katy TX 318J COMCAST IP PHONE LLC 560   2013-07-12   
281-665 7 Katy TX 318J COMCAST IP PHONE LLC 560   2013-10-30   
281-665 8 Katy TX 318J COMCAST IP PHONE LLC 560   2014-06-12   
281-666 1 Crosby TX 318J COMCAST IP PHONE LLC 560   2014-12-05   
281-670 5 Houston Suburban TX 318J COMCAST IP PHONE LLC 560   2014-09-02   
281-672 7 League City TX 318J COMCAST IP PHONE LLC 560   2014-11-24   
281-678 8 Dickinson TX 318J COMCAST IP PHONE LLC 560   2007-02-16   
281-692 2 Manvel TX 318J COMCAST IP PHONE LLC 560   2007-02-16   
281-710 4 Arcola TX 318J COMCAST IP PHONE LLC 560   2005-06-01   
281-717 4 Barker TX 318J COMCAST IP PHONE LLC 560   2008-03-01   
281-717 8 Barker TX 318J COMCAST IP PHONE LLC 560   2013-10-04   
281-719 0 Spring EMS TX 318J COMCAST IP PHONE LLC 560   2005-09-09   
281-719 5 Spring EMS TX 318J COMCAST IP PHONE LLC 560   2007-04-04   
281-719 8 Spring EMS TX 318J COMCAST IP PHONE LLC 560   2007-05-29   
281-721 2 Houston Suburban TX 318J COMCAST IP PHONE LLC 560   2018-11-29   
281-724 A League City TX 318J COMCAST IP PHONE LLC 560   2021-01-12   
281-724 0 League City TX 318J COMCAST IP PHONE LLC 560   2011-09-29   
281-724 1 League City TX 318J COMCAST IP PHONE LLC 560   2011-11-03   
281-724 9 League City TX 318J COMCAST IP PHONE LLC 560   2007-02-16   
281-729 A Dickinson TX 318J COMCAST IP PHONE LLC 560   2021-01-12   
281-729 1 Dickinson TX 318J COMCAST IP PHONE LLC 560   2019-06-21   
281-741 A Houston Suburban TX 318J COMCAST IP PHONE LLC 560   2021-01-12   
281-741 0 Houston Suburban TX 318J COMCAST IP PHONE LLC 560   2007-02-14   
281-741 1 Houston Suburban TX 318J COMCAST IP PHONE LLC 560   2007-02-14   
281-741 2 Houston Suburban TX 318J COMCAST IP PHONE LLC 560   2007-02-14   
281-741 3 Houston Suburban TX 318J COMCAST IP PHONE LLC 560   2007-09-03   
281-741 4 Houston Suburban TX 318J COMCAST IP PHONE LLC 560   2007-09-03   
281-741 5 Houston Suburban TX 318J COMCAST IP PHONE LLC 560   2007-09-03   
281-741 7 Houston Suburban TX 318J COMCAST IP PHONE LLC 560   2007-09-03   
281-741 8 Houston Suburban TX 318J COMCAST IP PHONE LLC 560   2007-09-03   
281-741 9 Houston Suburban TX 318J COMCAST IP PHONE LLC 560   2007-09-03   
281-747 7 Porter TX 318J COMCAST IP PHONE LLC 560   2007-02-16   
281-760 1 Houston Suburban TX 318J COMCAST IP PHONE LLC 560   2014-01-06   
281-762 0 Richmond-Rosenberg EMS TX 318J COMCAST IP PHONE LLC 560   2008-03-17   
281-762 1 Richmond-Rosenberg EMS TX 318J COMCAST IP PHONE LLC 560   2008-03-17   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 >>

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.