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: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 405

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-405 A Lancaster CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-405 0 Lancaster CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
661-405 1 Lancaster CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
661-405 2 Lancaster CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
661-405 3 Lancaster CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
661-405 4 Lancaster CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
661-405 5 Lancaster CA LNBHCAAXDS0  707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730      
661-405 6 Lancaster CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-405 7 Lancaster CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-405 8 Lancaster CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-405 9 Lancaster CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.