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: 657 [Rate centres in NPA 657] [Dial plan for NPA 657]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-206 A Garden Grove CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2010-07-02   
657-206 0 Garden Grove CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-12-05   
657-206 1 Garden Grove CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-07-06   
657-206 2 Garden Grove CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-07-06   
657-206 3 Garden Grove CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-10-29   
657-206 4 Garden Grove CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-10-29   
657-206 5 Garden Grove CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-12-13   
657-206 6 Garden Grove CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-26   
657-206 7 Garden Grove CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-26   
657-206 8 Garden Grove CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-26   
657-206 9 Garden Grove CA   6529 T-MOBILE USA, INC. 730   2010-07-02   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.