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: PDRYCAXF82A

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
310-301 A Santa Monica: Mar Vista DA CA 2319 FRONTIER CALIFORNIA INC. 730      
310-302 A Santa Monica: Mar Vista DA CA 2319 FRONTIER CALIFORNIA INC. 730      
310-305 A Santa Monica: Mar Vista DA CA 2319 FRONTIER CALIFORNIA INC. 730      
310-306 A Santa Monica: Mar Vista DA CA 2319 FRONTIER CALIFORNIA INC. 730      
310-448 A Santa Monica: Mar Vista DA CA 2319 FRONTIER CALIFORNIA INC. 730      
310-574 A Santa Monica: Mar Vista DA CA 2319 FRONTIER CALIFORNIA INC. 730      
310-577 A Santa Monica: Mar Vista DA CA 2319 FRONTIER CALIFORNIA INC. 730      
310-578 A Santa Monica: Mar Vista DA CA 2319 FRONTIER CALIFORNIA INC. 730      
310-821 A Santa Monica: Mar Vista DA CA 2319 FRONTIER CALIFORNIA INC. 730      
310-822 A Santa Monica: Mar Vista DA CA 2319 FRONTIER CALIFORNIA INC. 730      
310-823 A Santa Monica: Mar Vista DA CA 2319 FRONTIER CALIFORNIA INC. 730      
310-827 A Santa Monica: Mar Vista DA CA 2319 FRONTIER CALIFORNIA INC. 730      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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