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.

Tomball EMS, TX

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
281-290 A TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-290 0 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-290 1 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-290 2 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-290 3 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-290 4 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
281-290 5 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-290 6 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-290 7 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-290 8 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-290 9 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-320 A TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-320 0 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-320 1 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-320 2 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-320 3 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-320 4 HSTNTX279MD  7399 WESTEL, INC. - TX 560      
281-320 5 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-320 6 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-320 7 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-320 8 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-320 9 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-351 A TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-357 A TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-357 0 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-357 1 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-357 2 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-357 3 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-357 4 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-357 5 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-357 6 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-357 7 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-357 8 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-357 9 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
281-370 A TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 A TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 0 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 1 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
281-374 2 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-374 3 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 4 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-374 5 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 6 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 7 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 8 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-374 9 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-376 A TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-378 A TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-378 0 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-378 1 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-378 2 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
281-378 3 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-378 4 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
281-378 5 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
281-378 6 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
281-378 7 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
281-378 8   515J IP HORIZON LLC 560      
281-378 9 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-379 A TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-401 A TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-401 0 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-401 1 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-401 2 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-401 3 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-401 4 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-401 5 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-401 6 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-401 7 TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-401 8 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
281-401 9 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-655 A TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-655 0 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-655 1 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-655 2 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-655 3 HSTATX757MD  7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 560      
281-655 4 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-655 5 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-655 6 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-655 7 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-655 8 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-655 9 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
832-534 A TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
832-534 0 HSTNTXGI1MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-534 1 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
832-534 2 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-534 3 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-534 4 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
832-534 5 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
832-534 6 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
832-534 7 TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
832-534 8 HSTNTX01X7X  516C AT&T CORP. 560      
832-534 9 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-698 A HSTOTX42DS0  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-698 0 HSTOTX42DS0  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-698 1 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
832-698 2 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
832-698 3 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-698 4 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
832-698 5 HSTOTX42DS0  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
832-698 6 HSTNTXGI1MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      

1 2 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.