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: LSANCA54DS7

<< 1 2 3 4 5 6 7 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
657-243 A Fullerton CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
657-276 A Anaheim CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
657-289 A Santa Ana CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
657-295 A Anaheim CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
657-304 A Santa Ana CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
657-314 A Silverado CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
657-358 A Santa Ana CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
657-487 A Santa Ana CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-306 A Lake Hughes CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-310 A Santa Clarita: Newhall-Castaic DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-338 A Lake Hughes CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-339 A Hi Vista CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-347 A Santa Clarita: Saugus Canyon Country DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-349 A Palmdale: Palmdale DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-430 A Santa Clarita: Saugus Canyon Country DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-450 A Palmdale: Agua Dulce DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-456 A Palmdale: Palmdale DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-505 A Santa Clarita: Newhall-Castaic DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-524 A Lancaster CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-952 A Lancaster CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-977 A Santa Clarita: Saugus Canyon Country DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
714-248 A Westminster CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
714-262 A Anaheim CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
714-361 A Santa Ana CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
714-408 A Anaheim CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
714-421 A Huntington Beach CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
714-442 A Santa Ana CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
714-465 A Huntington Beach CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
714-581 A Santa Ana CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
714-656 A Santa Ana CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
714-702 A Westminster CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
714-786 A Garden Grove CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
714-881 A Santa Ana CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
714-882 A Fullerton CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
747-200 A Burbank: Burbank DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
747-201 A Burbank: Burbank DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
747-202 A Northridge CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
747-221 A Glendale CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
747-227 A San Fernando: Pacoima DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
747-229 A Burbank: Burbank DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
747-242 A Canoga Park CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
747-251 A San Fernando: Pacoima DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
747-272 A Glendale CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
760-203 A Bridgeport CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
760-206 A Lee Vining CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
760-209 A June Lake CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
760-232 A Pine Creek CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
760-258 A Bishop CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
760-263 A Big Pine CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
760-264 A Lone Pine CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      

<< 1 2 3 4 5 6 7 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.