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: OMAHNENWXEX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
531-910 5 Omaha NE 7144 TELEPORT COMMUNICATIONS AMERICA, LLC - NE 644   2021-07-15   
531-910 6 Omaha NE 7144 TELEPORT COMMUNICATIONS AMERICA, LLC - NE 644   2021-07-15   
712-220 4 Carroll IA 8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 644   2016-02-12   
712-302 A Glenwood IA 8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 644      
712-302 6 Glenwood IA 8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 644   2013-09-02   
712-340 8 Atlantic IA 8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 644   2018-10-08   
712-357 4 Red Oak IA 8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 644   2017-09-03   
712-442 6 Woodbine IA 8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 644   2023-08-24   
712-581 6 Shenandoah IA 8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 644   2017-08-17   
712-642 0 Missouri Valley IA 8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 644   2020-10-02   
712-695 2 Clarinda IA 8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 644   2017-03-20   
712-850 6 Clarinda IA 8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 644   2017-11-10   
712-854 6 Denison IA 8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 644   2019-09-20   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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