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: PSDNCA11DS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
323-681 A Los Angeles: DA 03 CA 9740 PACIFIC BELL 730      
626-304 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      
626-356 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      
626-395 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      
626-396 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      
626-405 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      
626-578 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      
626-584 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      
626-683 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      
626-744 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      
626-792 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      
626-793 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      
626-795 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      
626-796 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      
626-817 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      
626-844 A Pasadena: Pasadena DA CA 9740 PACIFIC BELL 730      

Last updated: Sat, 14 Sep 2019 01:44:23 UTC

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