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.

Lake Andes, SD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
605-469 A SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-469 0   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-469 1   145J TERRA NOVA TELECOM INC. 640   2025-08-01   
605-469 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2011-07-14   
605-469 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2010-12-04   
605-469 9   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-481 A SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-481 0   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-481 1   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-481 2   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-481 8   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-481 9   6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-487 A LKANSDXARS1  1660 FORT RANDALL TELCO DBA MT RUSHMORE TELEPHONE CO 640      
605-491 A SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-491 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-491 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-491 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-491 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-491 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-491 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-491 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-491 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-491 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2023-10-20   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.