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: HSTNTXJAXGY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
346-624 A Langham Creek TX 516J TON80 COMMUNICATIONS, LLC 560      
346-626 A Sugar Land TX 516J TON80 COMMUNICATIONS, LLC 560      
346-637 A Katy TX 516J TON80 COMMUNICATIONS, LLC 560      
346-639 A Houston Suburban TX 516J TON80 COMMUNICATIONS, LLC 560      
346-647 A Stafford TX 516J TON80 COMMUNICATIONS, LLC 560      
346-743 A Barker TX 516J TON80 COMMUNICATIONS, LLC 560      
346-782 A Porter TX 516J TON80 COMMUNICATIONS, LLC 560      
346-837 A Bammel TX 516J TON80 COMMUNICATIONS, LLC 560      
936-374 A Oakhurst TX 516J TON80 COMMUNICATIONS, LLC 560      
936-397 A Liberty TX 516J TON80 COMMUNICATIONS, LLC 560      
936-542 A Segno TX 516J TON80 COMMUNICATIONS, LLC 560      
936-548 A Montgomery (Montgomery) TX 516J TON80 COMMUNICATIONS, LLC 560      
936-742 A Goodrich TX 516J TON80 COMMUNICATIONS, LLC 560      
936-746 A Onalaska TX 516J TON80 COMMUNICATIONS, LLC 560      
936-837 A Coldspring TX 516J TON80 COMMUNICATIONS, LLC 560      
979-588 A Hempstead TX 516J TON80 COMMUNICATIONS, LLC 560      
979-675 A New Ulm TX 516J TON80 COMMUNICATIONS, LLC 560      
979-746 A Sealy TX 516J TON80 COMMUNICATIONS, LLC 560      
979-783 A Eagle Lake TX 516J TON80 COMMUNICATIONS, LLC 560      
979-837 A Angleton TX 516J TON80 COMMUNICATIONS, LLC 560      
979-866 A Brazoria TX 516J TON80 COMMUNICATIONS, LLC 560      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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