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: ANHMCA01XEY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
213-266 A Los Angeles: DA 01 CA 516C AT&T CORP. 730      
323-424 A Los Angeles: DA 13 CA 516C AT&T CORP. 730      
323-746 A Los Angeles: DA 13 CA 516C AT&T CORP. 730      
424-263 A Lomita CA 516C AT&T CORP. 730      
424-264 A San Pedro CA 516C AT&T CORP. 730      
424-361 A Culver City CA 516C AT&T CORP. 730      
424-541 A Inglewood CA 516C AT&T CORP. 730      
424-603 A Culver City CA 516C AT&T CORP. 730      
424-738 A Avalon CA 516C AT&T CORP. 730      
626-741 A Alhambra CA 516C AT&T CORP. 730      
657-231 A Santa Ana CA 516C AT&T CORP. 730      
657-233 A Garden Grove CA 516C AT&T CORP. 730      
657-315 A Placentia CA 516C AT&T CORP. 730      
657-337 A Cypress CA 516C AT&T CORP. 730      
661-526 A Palmdale: Palmdale DA CA 516C AT&T CORP. 730      
747-998 A Van Nuys CA 516C AT&T CORP. 730      
760-849 A Baker CA 516C AT&T CORP. 730      
805-918 A Saticoy CA 516C AT&T CORP. 730      
818-852 A Agoura CA 516C AT&T CORP. 730      
818-853 A North Hollywood CA 516C AT&T CORP. 730      
818-945 A Glendale CA 516C AT&T CORP. 730      
909-275 A Fontana CA 516C AT&T CORP. 730      
909-640 A Rialto CA 516C AT&T CORP. 730      
909-672 A Highland CA 516C AT&T CORP. 730      
949-536 A Irvine CA 516C AT&T CORP. 730      
949-652 A Saddleback Valley CA 516C AT&T CORP. 730      
951-427 A Corona CA 516C AT&T CORP. 730      
951-429 A Woodcrest CA 516C AT&T CORP. 730      

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

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