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: 559 [Rate centres in NPA 559] [Dial plan for NPA 559]

NXX: 943

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-943 A Del Rey CA FRSNCA01XGZ  7262 XO CALIFORNIA, INC. 728      
559-943 0 Del Rey CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728      
559-943 1 Del Rey CA FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728      
559-943 2 Del Rey CA FRSNCA01XGZ  7262 XO CALIFORNIA, INC. 728      
559-943 3 Del Rey CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728      
559-943 4 Del Rey CA FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728      
559-943 5 Del Rey CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728      
559-943 6 Del Rey CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728      
559-943 7 Del Rey CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728      
559-943 8 Del Rey CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728      
559-943 9 Del Rey CA FRSNCA01XMZ  073H TELNYX LLC 728      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.