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: SNPDCA01DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
310-221 A San Pedro CA 9740 PACIFIC BELL 730      
310-241 A San Pedro CA 9740 PACIFIC BELL 730      
310-514 A San Pedro CA 9740 PACIFIC BELL 730      
310-519 A San Pedro CA 9740 PACIFIC BELL 730      
310-521 A San Pedro CA 9740 PACIFIC BELL 730      
310-547 A San Pedro CA 9740 PACIFIC BELL 730      
310-548 A San Pedro CA 9740 PACIFIC BELL 730      
310-732 A San Pedro CA 9740 PACIFIC BELL 730      
310-831 A San Pedro CA 9740 PACIFIC BELL 730      
310-832 A San Pedro CA 9740 PACIFIC BELL 730      
310-833 A San Pedro CA 9740 PACIFIC BELL 730      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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