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: 8413 ALLEGIANCE TELECOM, INC. - TX

1 2 3 4 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
210-441 4 San Antonio TX   566   2010-05-25   
210-441 5 San Antonio TX   566   2010-05-25   
210-569 6 San Antonio TX   566   2006-11-19   
210-569 7 San Antonio TX   566   2006-11-19   
210-569 8 San Antonio TX   566   2006-11-19   
210-798 A San Antonio TX SNASTXTMDS0  566      
210-853 3 San Antonio TX   566   2008-11-10   
210-853 4 San Antonio TX   566   2008-11-10   
214-231 A Dallas TX DLLSTX97DS3  552      
214-261 A Dallas TX DLLSTX97DS3  552      
214-461 A Dallas TX DLLSTX97DS3  552      
214-572 A Dallas TX DLLSTX97DS3  552      
281-310 5 Houston Suburban TX   560   2011-03-11   
281-310 8 Houston Suburban TX   560   2011-03-11   
281-657 A Houston TX HSTNTXGIDS4  560      
281-657 0 Houston TX   560      
281-657 1 Houston TX   560      
281-657 2 Houston TX   560      
281-657 3 Houston TX   560      
281-657 4 Houston TX   560      
281-657 8 Houston TX   560      
281-657 9 Houston TX   560      
281-720 A Satsuma TX HSTNTXGIDS4  560      
281-720 0 Satsuma TX   560      
281-720 1 Satsuma TX   560      
281-720 2 Satsuma TX   560   2007-05-31   
281-720 4 Satsuma TX   560      
281-720 5 Satsuma TX   560      
281-720 9 Satsuma TX   560      
281-846 2 Houston TX   560   2009-08-24   
281-846 3 Houston TX   560   2009-08-24   
469-259 A Dallas TX DLLSTX97DS3  552      
469-375 A Dallas TX DLLSTX97DS3  552      
469-375 0 Dallas TX   552      
469-375 1 Dallas TX   552      
469-375 2 Dallas TX   552      
469-375 3 Dallas TX   552      
469-375 4 Dallas TX   552      
469-375 5 Dallas TX   552      
469-375 6 Dallas TX   552      
469-375 7 Dallas TX   552      
469-375 8 Dallas TX   552      
469-375 9 Dallas TX   552      
469-461 A Dallas TX DLLSTX97DS3  552      
713-490 A Houston TX HSTNTXGIDS4  560      
817-391 A Euless EMS TX DLLSTX978MD  552      
817-391 0 Euless EMS TX   552      
817-391 1 Euless EMS TX   552      
817-391 3 Euless EMS TX   552      
817-391 4 Euless EMS TX   552      

1 2 3 4 >>

Last updated: Sat, 23 Mar 2019 01:32:05 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.