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.

Compton: Gardena DA, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
310-243 8 LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
310-243 9 GRDNCA01DS0  9740 PACIFIC BELL 730      
310-245 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-249 A LSANCA05TMD  6630 USA MOBILITY WIRELESS, INC. 730      
310-250 A LSANCA05TMD  6630 USA MOBILITY WIRELESS, INC. 730      
310-251 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-283 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-291 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-292 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-293 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-296 A LSANCA039MD  6906 AMERICAN MESSAGING SERVICES, LLC 730      
310-298 A LSANCA05TMD  6630 USA MOBILITY WIRELESS, INC. 730      
310-308 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-323 A GRDNCA01DS0  9740 PACIFIC BELL 730      
310-324 A GRDNCA01DS1  9740 PACIFIC BELL 730      
310-327 A GRDNCA01DS1  9740 PACIFIC BELL 730      
310-329 A GRDNCA01DS1  9740 PACIFIC BELL 730      
310-344 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-345 A TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-345 0 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-345 1 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-345 2 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-345 3 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-345 4 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-345 5 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-345 6 TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
310-345 7 TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
310-345 8 TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
310-345 9 TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
310-346 A TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-346 0 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-346 1 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-346 2 CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-09-17   
310-346 3 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-346 4 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-346 5 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-346 6 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-346 7 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-346 8 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-346 9 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-352 A GRDNCA01DS0  9740 PACIFIC BELL 730      
310-352 0 LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
310-352 1 GRDNCA01DS0  9740 PACIFIC BELL 730      
310-352 2 GRDNCA01DS0  9740 PACIFIC BELL 730      
310-352 3 GRDNCA01DS0  9740 PACIFIC BELL 730      
310-352 4 GRDNCA01DS0  9740 PACIFIC BELL 730      
310-352 5 GRDNCA01DS0  9740 PACIFIC BELL 730      
310-352 6 GRDNCA01DS0  9740 PACIFIC BELL 730      
310-352 7 LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
310-352 8 GRDNCA01DS0  9740 PACIFIC BELL 730      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.