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: LSANCAJW2MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
213-204 A Los Angeles: DA 07 CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
213-634 A Los Angeles: DA 01 CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
323-498 A Los Angeles: DA 14 CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
424-291 A Santa Monica: Santa Monica DA CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
424-292 A Compton: Gardena DA CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
424-297 A Hawthorne CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
424-328 A Lomita CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
562-273 A Whittier CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
626-225 A La Puente CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
661-441 A Palmdale: Palmdale DA CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
661-471 A Lancaster CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
714-266 A Buena Park CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
714-294 A Anaheim CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
714-559 A Santa Ana CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
747-233 A Van Nuys CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
818-452 A North Hollywood CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
818-659 A Pasadena: La Cañada DA CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
909-321 A Ontario CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
909-360 A Upland CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
949-445 A Saddleback Valley CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
951-339 A Corona CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
951-363 A Moreno CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      
951-423 A Perris CA 508J CENTURYLINK COMMUNICATIONS, LLC 730      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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