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: STLSMO09XMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
636-547 7 Imperial MO 7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2008-11-25   
636-548 7 Maxville MO 7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2009-07-27   
636-582 8 Union MO 7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2011-02-07   
636-587 4 Eureka MO 7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2012-07-20   
636-622 7 Troy MO 6123 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2019-05-10   
636-635 7 Cedar Hill MO 7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2022-07-18   
636-825 5 Valley Park MO 7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2020-04-06   
636-828 2 New Melle MO 6123 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2019-02-21   
636-865 A Hillsboro MO 6123 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520      
636-865 5 Hillsboro MO 6123 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2017-08-07   
636-865 6 Hillsboro MO 6123 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2017-05-22   
636-888 6 St Clair MO 6123 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2017-11-01   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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