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.
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Switch: SNLOCA01XCX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
805-203 A Cambria CA 981E BANDWIDTH.COM CLEC, LLC - CA 740      
805-213 A Paso Robles CA 9748 AMERICAN MESSAGING SERVICES, LLC 740      
805-316 A San Luis Obispo CA 981E BANDWIDTH.COM CLEC, LLC - CA 740      
805-599 A San Luis Obispo CA 9748 AMERICAN MESSAGING SERVICES, LLC 740      
805-615 A Santa Maria CA 9748 AMERICAN MESSAGING SERVICES, LLC 740      
805-619 A Nipomo CA 981E BANDWIDTH.COM CLEC, LLC - CA 740      
805-724 A Santa Barbara CA 981E BANDWIDTH.COM CLEC, LLC - CA 740      
805-726 A Santa Barbara CA 9748 AMERICAN MESSAGING SERVICES, LLC 740      
805-780 A San Luis Obispo CA 9748 AMERICAN MESSAGING SERVICES, LLC 740      
805-880 A Santa Barbara CA 981E BANDWIDTH.COM CLEC, LLC - CA 740      
805-930 A Nipomo CA 981E BANDWIDTH.COM CLEC, LLC - CA 740      
805-939 A Nipomo CA 981E BANDWIDTH.COM CLEC, LLC - CA 740      
805-996 A San Luis Obispo CA 981E BANDWIDTH.COM CLEC, LLC - CA 740      
820-209 A Gaviota CA 981E BANDWIDTH.COM CLEC, LLC - CA 740      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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