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: HSTNTXYADS5

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-203 8 Spring TX 903C ONVOY, LLC - TX 560   2008-10-18   
281-204 8 Apollo TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-205 1 Tomball TX 903C ONVOY, LLC - TX 560   2003-10-28   
281-205 3 Tomball TX 903C ONVOY, LLC - TX 560   2011-11-21   
281-206 8 Barker TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-212 3 Apollo TX 903C ONVOY, LLC - TX 560   2008-04-22   
281-214 6 Westfield TX 903C ONVOY, LLC - TX 560   2020-09-30   
281-214 8 Westfield TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-215 5 Sheldon TX 903C ONVOY, LLC - TX 560   2012-12-17   
281-238 5 Richmond-Rosenberg EMS TX 903C ONVOY, LLC - TX 560   2014-10-06   
281-241 8 Deer Park TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-247 6 Channelview TX 903C ONVOY, LLC - TX 560   2020-09-30   
281-247 8 Channelview TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-248 8 Bammel TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-258 8 Houston Suburban TX 903C ONVOY, LLC - TX 560   2013-12-05   
281-270 A Barker TX 903C ONVOY, LLC - TX 560      
281-270 0 Barker TX 903C ONVOY, LLC - TX 560   2024-01-08   
281-270 1 Barker TX 903C ONVOY, LLC - TX 560   2024-04-05   
281-270 2 Barker TX 903C ONVOY, LLC - TX 560   2023-12-02   
281-270 3 Barker TX 903C ONVOY, LLC - TX 560   2023-12-02   
281-270 4 Barker TX 903C ONVOY, LLC - TX 560   2024-02-24   
281-270 5 Barker TX 903C ONVOY, LLC - TX 560   2024-02-24   
281-270 6 Barker TX 903C ONVOY, LLC - TX 560   2024-02-24   
281-270 7 Barker TX 903C ONVOY, LLC - TX 560   2024-05-11   
281-270 8 Barker TX 903C ONVOY, LLC - TX 560   2024-05-11   
281-270 9 Barker TX 903C ONVOY, LLC - TX 560   2024-05-11   
281-271 3 Deer Park TX 903C ONVOY, LLC - TX 560   2020-11-30   
281-290 4 Tomball EMS TX 903C ONVOY, LLC - TX 560   2008-01-11   
281-305 1 Pinehurst TX 903C ONVOY, LLC - TX 560   2003-10-28   
281-305 6 Pinehurst TX 903C ONVOY, LLC - TX 560   2020-12-10   
281-306 6 Splendora TX 903C ONVOY, LLC - TX 560   2013-01-10   
281-315 3 Bammel TX 903C ONVOY, LLC - TX 560   2011-11-04   
281-317 2 Friendswood TX 903C ONVOY, LLC - TX 560   2020-11-30   
281-317 3 Friendswood TX 903C ONVOY, LLC - TX 560   2020-11-30   
281-317 4 Friendswood TX 903C ONVOY, LLC - TX 560   2020-11-30   
281-317 6 Friendswood TX 903C ONVOY, LLC - TX 560   2020-09-30   
281-317 8 Friendswood TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-346 7 Valley Lodge EMS TX 903C ONVOY, LLC - TX 560   2011-03-25   
281-346 9 Valley Lodge EMS TX 903C ONVOY, LLC - TX 560   2013-02-03   
281-357 9 Tomball EMS TX 903C ONVOY, LLC - TX 560   2011-05-10   
281-369 6 Rosharon EMS TX 903C ONVOY, LLC - TX 560   2017-11-04   
281-369 9 Rosharon EMS TX 903C ONVOY, LLC - TX 560   2018-03-03   
281-374 1 Tomball EMS TX 903C ONVOY, LLC - TX 560   2009-01-05   
281-377 0 Bammel TX 903C ONVOY, LLC - TX 560   2006-06-02   
281-377 7 Bammel TX 903C ONVOY, LLC - TX 560   2006-06-02   
281-377 9 Bammel TX 903C ONVOY, LLC - TX 560   2006-06-02   
281-378 4 Tomball EMS TX 903C ONVOY, LLC - TX 560   2005-03-31   
281-378 5 Tomball EMS TX 903C ONVOY, LLC - TX 560   2005-03-31   
281-378 6 Tomball EMS TX 903C ONVOY, LLC - TX 560   2006-12-14   
281-378 7 Tomball EMS TX 903C ONVOY, LLC - TX 560   2006-12-14   
281-393 0 Liverpool EMS TX 903C ONVOY, LLC - TX 560   2014-10-26   
281-399 4 Splendora EMS TX 903C ONVOY, LLC - TX 560   2014-10-21   
281-399 5 Splendora EMS TX 903C ONVOY, LLC - TX 560   2014-10-21   
281-401 8 Tomball EMS TX 903C ONVOY, LLC - TX 560   2003-10-22   
281-407 8 Houston TX 903C ONVOY, LLC - TX 560   2011-07-12   
281-417 4 La Porte TX 903C ONVOY, LLC - TX 560   2020-11-30   
281-417 5 La Porte TX 903C ONVOY, LLC - TX 560   2021-04-12   
281-417 6 La Porte TX 903C ONVOY, LLC - TX 560   2020-11-30   
281-417 9 La Porte TX 903C ONVOY, LLC - TX 560   2020-12-05   
281-466 1 Spring EMS TX 903C ONVOY, LLC - TX 560   2003-10-28   
281-466 3 Spring EMS TX 903C ONVOY, LLC - TX 560   2009-01-08   
281-466 8 Spring EMS TX 903C ONVOY, LLC - TX 560   2003-10-22   
281-473 A Houston Suburban TX 903C ONVOY, LLC - TX 560   2025-01-11   
281-473 0 Houston Suburban TX 903C ONVOY, LLC - TX 560   2025-01-11   
281-475 4 Spring TX 903C ONVOY, LLC - TX 560   2008-08-15   
281-475 8 Spring TX 903C ONVOY, LLC - TX 560   2008-10-18   
281-478 9 Deer Park TX 903C ONVOY, LLC - TX 560   2020-11-30   
281-500 8 Langham Creek TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-501 6 Houston TX 903C ONVOY, LLC - TX 560   2007-08-10   
281-501 7 Houston TX 903C ONVOY, LLC - TX 560   2007-08-10   
281-503 5 Porter Heights TX 903C ONVOY, LLC - TX 560   2017-05-28   
281-503 7 Porter Heights TX 903C ONVOY, LLC - TX 560   2011-11-18   
281-519 2 Manvel TX 903C ONVOY, LLC - TX 560   2020-09-30   
281-519 3 Manvel TX 903C ONVOY, LLC - TX 560   2020-09-30   
281-519 4 Manvel TX 903C ONVOY, LLC - TX 560   2020-12-10   
281-519 6 Manvel TX 903C ONVOY, LLC - TX 560   2020-09-30   
281-519 8 Manvel TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-519 9 Manvel TX 903C ONVOY, LLC - TX 560   2020-12-10   
281-529 7 Houston Suburban TX 903C ONVOY, LLC - TX 560   2020-10-10   
281-533 3 Valley Lodge TX 903C ONVOY, LLC - TX 560   2011-03-25   
281-533 6 Valley Lodge TX 903C ONVOY, LLC - TX 560   2011-09-02   
281-533 8 Valley Lodge TX 903C ONVOY, LLC - TX 560   2012-06-18   
281-545 3 Smithers Lake TX 903C ONVOY, LLC - TX 560   2013-01-10   
281-552 7 Houston Suburban TX 903C ONVOY, LLC - TX 560   2009-03-17   
281-571 8 Satsuma TX 903C ONVOY, LLC - TX 560   2003-10-25   
281-572 0 Porter Heights TX 903C ONVOY, LLC - TX 560   2019-01-25   
281-572 5 Porter Heights TX 903C ONVOY, LLC - TX 560   2020-03-06   
281-572 6 Porter Heights TX 903C ONVOY, LLC - TX 560   2013-01-10   
281-572 8 Porter Heights TX 903C ONVOY, LLC - TX 560   2019-01-25   
281-591 9 Houston Suburban TX 903C ONVOY, LLC - TX 560   2011-06-17   
281-595 1 Rosharon TX 903C ONVOY, LLC - TX 560   2019-07-11   
281-595 7 Rosharon TX 903C ONVOY, LLC - TX 560   2013-09-30   
281-595 9 Rosharon TX 903C ONVOY, LLC - TX 560   2019-07-11   
281-598 A Houston Suburban TX 903C ONVOY, LLC - TX 560      
281-602 8 Spring TX 903C ONVOY, LLC - TX 560   2008-02-02   
281-606 A Houston Suburban TX 903C ONVOY, LLC - TX 560      
281-606 1 Houston Suburban TX 903C ONVOY, LLC - TX 560   2007-06-16   
281-606 2 Houston Suburban TX 903C ONVOY, LLC - TX 560   2007-06-16   
281-606 3 Houston Suburban TX 903C ONVOY, LLC - TX 560   2009-02-04   
281-607 2 Manvel TX 903C ONVOY, LLC - TX 560   2013-02-03   

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 >>

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.