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: 562 [Rate centres in NPA 562] [Dial plan for NPA 562]

NXX: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
562-579 A Downey CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730      
562-579 0 Downey CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730   2021-12-26   
562-579 1 Downey CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730   2021-12-26   
562-579 2 Downey CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730   2021-12-26   
562-579 3 Downey CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730   2021-12-26   
562-579 4 Downey CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730   2021-12-26   
562-579 5 Downey CA LNBHCAXPXBY  649C ONVOY, LLC - CA 730   2021-12-27   
562-579 6 Downey CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-12-27   
562-579 7 Downey CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-12-27   
562-579 8 Downey CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-12-27   
562-579 9 Downey CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-12-27   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.