Local Calling Guide

Area code/prefix search

Search by area code/prefix (NPA/NXX) or OCN

  • 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.

Last updated: Fri, 17 May 2013 01:26:12 UTC

How to use this page

NPA: 573 [Rate centres in NPA 573] [Dial plan for NPA 573]

NXX: 405

NPA-NXX-X Rate Centre Region Switch OCN LATA Eff date Disc date Map
573-405 Vienna MO JFCYMOXAJMD 5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO [link] 521 map
573-405-0 Vienna MO 5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO [link] 521 map
573-405-6 Vienna MO 7218 TELEPORT COMMUNICATIONS GROUP - ST. LOUIS [link] 521 2012-10-04


Sponsored by: Telmetrics