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]

NXX: 592

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-592 A Hercules-Rodeo CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-592 0 Hercules-Rodeo CA SNFCCA21XPZ  553J WHITESKY COMMUNICATIONS, LLC 722      
510-592 2 Hercules-Rodeo CA SNJUCACL4MD  939H COMMIO, LLC 722      
510-592 3 Hercules-Rodeo CA SNJUCACL4MD  939H COMMIO, LLC 722      
510-592 4 Hercules-Rodeo CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
510-592 5 Hercules-Rodeo CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
510-592 6 Hercules-Rodeo CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
510-592 7 Hercules-Rodeo CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
510-592 8 Hercules-Rodeo CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
510-592 9 Hercules-Rodeo CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.