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: 840 [Rate centres in NPA 840] [Dial plan for NPA 840]

NXX: 206

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
840-206 A Chino CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
840-206 0 Chino CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730      
840-206 1 Chino CA COVNCAXFX2Y  624H ONVOY SPECTRUM, LLC 730      
840-206 2 Chino CA COVNCAXFX2Y  624H ONVOY SPECTRUM, LLC 730      
840-206 3 Chino CA COVNCAXFX2Y  624H ONVOY SPECTRUM, LLC 730      
840-206 4 Chino CA COVNCAXFX2Y  624H ONVOY SPECTRUM, LLC 730      
840-206 5 Chino CA COVNCAXFX2Y  624H ONVOY SPECTRUM, LLC 730      
840-206 6 Chino CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730      
840-206 7 Chino CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
840-206 8 Chino CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
840-206 9 Chino CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.