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: 605 [Rate centres in NPA 605] [Dial plan for NPA 605]

NXX: 407

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-407 A Martin SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-407 0 Martin SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2009-04-30   
605-407 1 Martin SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2009-04-30   
605-407 2 Martin SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2009-05-22   
605-407 3 Martin SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2009-05-22   
605-407 4 Martin SD SXFLSDTUCM0  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2015-04-19   
605-407 5 Martin SD SXFLSDTUCM0  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2015-04-19   
605-407 6 Martin SD SXFLSDTUCM0  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2015-04-19   
605-407 7 Martin SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2009-09-11   
605-407 8 Martin SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2009-09-11   
605-407 9 Martin SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2009-09-11   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.