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: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

Region: CA

OCN: 981E BANDWIDTH.COM CLEC, LLC - CA

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
510-999 5 Hayward CA SNFCCA21XUY  722   2011-05-07   
510-999 6 Hayward CA SNFCCA21XUY  722   2011-05-07   
510-999 8 Hayward CA SNFCCA21XUY  722   2011-05-07   

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

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