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.

Switch: SNDGCA03DS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
858-277 A San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-278 A San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-292 A San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-505 A San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-514 A San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-522 A San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-522 1 San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-522 2 San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-522 3 San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-522 4 San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-522 5 San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-522 6 San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-522 7 San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-522 8 San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-560 A San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-565 A San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-569 A San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-571 A San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-694 A San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-715 A San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      
858-874 A San Diego: Linda Vista DA CA 9740 PACIFIC BELL 732      

Last updated: Sat, 02 May 2026 12:20:53 UTC

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