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: AVLNCA11RS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
310-510 A Avalon CA 9740 PACIFIC BELL 730      
310-510 0 Avalon CA 9740 PACIFIC BELL 730      
310-510 1 Avalon CA 9740 PACIFIC BELL 730      
310-510 2 Avalon CA 9740 PACIFIC BELL 730      
310-510 3 Avalon CA 9740 PACIFIC BELL 730      
310-510 4 Avalon CA 9740 PACIFIC BELL 730      
310-510 7 Avalon CA 9740 PACIFIC BELL 730      
310-510 8 Avalon CA 9740 PACIFIC BELL 730      
310-510 9 Avalon CA 9740 PACIFIC BELL 730      

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

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