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.

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

NXX: 606

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-606 A Jefferson City MO CLMAMOXAX9X  551G NUSO, LLC 521      
573-606 0 Jefferson City MO JFCYMOXAXZX  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 521   2022-03-21   
573-606 1 Jefferson City MO CLMAMOXAX9X  551G NUSO, LLC 521   2013-05-18   
573-606 2 Jefferson City MO CLMAMOXAX9X  551G NUSO, LLC 521   2018-03-06   
573-606 3 Jefferson City MO CLMAMOWB0MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 521   2018-05-05   
573-606 4 Jefferson City MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2021-02-28   
573-606 5 Jefferson City MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2021-02-28   
573-606 6 Jefferson City MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2018-07-16   
573-606 7 Jefferson City MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2021-02-28   
573-606 8 Jefferson City MO CLMAMOWB0MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 521   2016-04-14   
573-606 9 Jefferson City MO JFCYMOXAXLX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 521   2014-04-10   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.