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: LSANCA03JMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
213-510 A Los Angeles: DA 06 CA 506J TWILIO INTERNATIONAL INC 730      
213-512 A Los Angeles: DA 07 CA 506J TWILIO INTERNATIONAL INC 730      
213-723 A Los Angeles: DA 01 CA 506J TWILIO INTERNATIONAL INC 730      
442-423 A Lake Isabella CA 506J TWILIO INTERNATIONAL INC 730   2020-12-29   
442-524 A Victorville: Adelanto DA CA 506J TWILIO INTERNATIONAL INC 730   2020-12-29   
442-542 A Needles CA 506J TWILIO INTERNATIONAL INC 730      
442-642 A Newberry CA 506J TWILIO INTERNATIONAL INC 730   2020-12-29   
442-742 A Summit Valley CA 506J TWILIO INTERNATIONAL INC 730   2020-12-29   
562-560 A Long Beach CA 506J TWILIO INTERNATIONAL INC 730   2020-12-29   
562-662 A Whittier CA 506J TWILIO INTERNATIONAL INC 730   2020-12-29   
657-650 A Orange CA 506J TWILIO INTERNATIONAL INC 730      
657-757 A Santa Ana CA 506J TWILIO INTERNATIONAL INC 730      
657-895 A Huntington Beach CA 506J TWILIO INTERNATIONAL INC 730   2020-12-29   
747-737 A Pasadena: La Cañada DA CA 506J TWILIO INTERNATIONAL INC 730      
747-895 A La Crescenta CA 506J TWILIO INTERNATIONAL INC 730      
909-707 A Big Bear City CA 506J TWILIO INTERNATIONAL INC 730   2020-12-29   
909-805 A Mentone CA 506J TWILIO INTERNATIONAL INC 730   2020-12-29   
909-853 A Running Springs CA 506J TWILIO INTERNATIONAL INC 730   2020-12-29   
909-893 A San Bernardino CA 506J TWILIO INTERNATIONAL INC 730   2020-12-29   
909-897 A Crestline CA 506J TWILIO INTERNATIONAL INC 730   2020-12-30   

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

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