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: HSTOTX46DS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
713-369 A Houston TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
713-401 A Houston TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
713-423 A Houston TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
713-425 A Houston TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
713-470 A Houston TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
713-820 A Houston TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
713-835 A Houston TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
832-235 A Bammel TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
832-337 A Houston Suburban TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
832-536 A Kemah TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
832-619 A Houston Suburban TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
832-664 A Houston Suburban TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
832-679 A Houston Suburban TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
832-787 A Houston Suburban TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
832-823 A Spring TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
832-918 A Houston TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
832-941 A Houston TX 7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      

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Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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